Holley carb identification chart

New & Hot Quick Fuel Parts. Discover All. Looking for carburetors and carburetor parts for drag racing and street rods? Shop on Holley.com, the official site for QFT products.

Holley carb identification chart. A chart showing illustrations of select North American birds is available on the National Audubon Society’s Guide to North American Birds webpage. Charts comparing physical feature...

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NOTE: Make a visual inspection of the carburetor, looking for any missing parts, bent levers, or any possible shipping damage. 1. Remove the air cleaner. 2. Label all connections to the carburetor such as: fuel line, PCV vacuum and spark - distributor vacuum. 3. After labeling all connections to the carburetor, carefully disconnect all hoses ...The original Dominator® took carburetion to another level in 1969 when it was developed for NASCAR® racing. Holley Dominator carburetors are designed specifically for making top end horsepower and torque in high end racing engines and are the perfect carburetor for the budget minded racer. Classic Dominator carburetors feature an aluminum main body with a contoured venturi inlet for balanced ...Place the new carburetor flange gasket, provided with the carburetor, in the proper position on the intake manifold. Place the carburetor on top of the flange gasket on the manifold. Install the hold down nuts and snug down progressively in a "crisscross" pattern (60-80 in./lbs.), as shown in Figure 5. Figure 5.Check the throttle plates sometimes they are on there also, and sometimes on the base plate just above a mounting hole. 09-07-2001, 06:39 PM #4. 1000mhz. On my base plate there this 12R-4507-BR. and on the underside of the plate 11153. On the throttle plates (inside barrels)there. is a 180 on each butterfly plate.Tooth Identification - Tooth identification is made difficult by the fact that there's no central database of dental records. Learn about tooth identification and how it's done. Ad...With the choke housing swung out of the way, remove the 3 screws holding the secondary throttle diaphragm assembly. Remove the “C” clip at the throttle lever. Remove the secondary diaphragm cover screws. Tap the top of the housing lightly with a mallet to ease removal. Install the alternate secondary diaphragm spring.

Seventh number will be the type of fuel the carb is made for (gas, alcohol, etc.) The suffix will show what the carburetor was made for such as for a blower application etc. Once the number has been confirmed it can be looked up online or you can call and speak to a JEGS tech support specialist at 1-800-345-4545. Street Demon.We would like to show you a description here but the site won't allow us.https://www.holley.com/products/fuel_systems/carburetor_components/rebuild_kits/ Are you looking for a rebuild kit, parts, or specifications for your...2. Place the new carburetor flange gasket, provided with the carburetor, in the proper position on the intake manifold. 3. Place the carburetor on top of the flange gasket on the manifold. Install the hold down nuts and snug down progressively in a “crisscross” pattern (60-80 in./lbs.), as shown in Figure 4.U.S. stocks closed mostly lower on Wednesday, with the Nasdaq Composite dropping around 175 points. Here is the list of some big stocks recording ... U.S. stocks closed mostly lowe...

On this ID page you will be able to visually verify that you have selected the correct carburetor for your application and then place your order or call 1.800.250.8746. Our staff will verify you have ordered the correct marine carburetor from the carburetor information you fill out in the ordering process. All carburetors have a complete one ...This carburetor was made by Holley , The Holley Brothers Company was started in 1905 in Detroit Michigan then became the Holley Carburetor Co . It is a H4-4160 . This carburetor has a part number of R4166 LIST 4166 and used on 67-69 Chrysler . Check here for specific Muscle car Info: Referenced by ; Holley R4166 or LIST 4166 ...Carb Number Carb Model Number CFM Renew Kit. Trick Kit: Needle & Seat Primary Main Jet Secondary Main Jet or plate Primary Metering Block Secondary Metering Block Power Valve Pump Nozzle Size, Primary Secondary Nozzle Size or Spring Color Primary Bowl Gasket Primary Metering Block Gasket Secondary Bowl Gasket SecondaryCarburetor Reference Sheet and Related Parts. This carburetor was made by Holley , The Holley Brothers Company was started in 1905 in Detroit Michigan then became the Holley Carburetor Co . It is a H4-4150 . This carburetor has a part number of 4777-4 and used on 650 CFM Double Pumper . Check here for specific Muscle car Info.

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The Carburetor Doctor has a full line of Holley carburetor rebuild kits, floats, choke thermostats, parts and service manuals for 1, 2, 3 and 4 barrel Holley carburetors from …New & Hot Quick Fuel Parts. Discover All. Looking for carburetors and carburetor parts for drag racing and street rods? Shop on Holley.com, the official site for QFT products.The number 5 designates an emission carburetor from California. The digit following the number 2 (or 5), will indicate the type of GM car it was originally installed. A 4 would mean it is for a Buick, a 5 …Holley Marvel . Updraft ... The following chart has been copied (with permission) from a factory Zenith publication, and will help the hobbyist understand the meaning of the Zenith models. ... We offer a carburetor identification service. If the carburetor can be readily identified (tag, or stamped identification number) there is a $20. charge ...Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Thus, Holley can not guarantee an answer or timing on an answer. ... Help, carb identification & tuning. 04-21-2021, 10:14 PM. Hi. I bought a jet boat with a Chevy 283 and the don't know what carb is ...

Lengthy video on tuning the jets on your holley carb. this info can translate to any holley 4150 and 4160 style carbs. Too many people have no idea how jetti...These carb tuning aspects are discussed on our page. The following is a partial list of Holley list numbers for some of their most popular carburetors. It is not a complete list. LIST # CFM STOCK JETTING POWER VALVE TYPE. 1850-2600(F)66,(R)plate 134-96.54160. 1850-3600(F)66,(R)plate 134-96.54160.NOMENCLATURE - MODEL 4150/4160 Ref. No. Description Ref. No. Description 1 Dashpot Nut 2 Dashpot Assembly 3 Da shpot Bracket Screw 4 Dashpot Bracket 5 Throttle Lever Extension Screw 6 Throttle Lever Extension Nut 7 Lockwasher Extension Nut 8 Throttle Lever Extension 9 Solenoid Bracket Screw 10 Solenoid Bracket Screw 11 Solenoid Bracket 12 Solenoid AssemblyHolley carburetor identification Holley specs hp series Holley numerical listings pdf. Holley carburetor identify. 3 holley carburetor identification begins with the list number locatedHolley carb identification Holley carb hunter's guideHolley carb identification number date sketchy pit avoid mods stop need list hotrod part.Air & Fuel Delivery /. Fuel Pumps Regulators and Filters /. Fuel Pumps /. Carbureted Fuel Pumps /. Carbureted Mechanical Pumps.Carb Number Carb Model Number CFM Renew Kit. Trick Kit: Needle & Seat Primary Main Jet Secondary Main Jet or plate Primary Metering Block Secondary Metering Block Power Valve Pump Nozzle Size, Primary Secondary Nozzle Size or Spring Color Primary Bowl Gasket Primary Metering Block Gasket Secondary Bowl Gasket SecondaryHolley, through research ... included. If your carburetor has a two-stage power valve, use the chart and drawings below to determine ... Identification Stamp Replacement Single Stage Power Valve Identification Stamp 5 55 7 55 8 45 9 45 10 55 11 45 12 65 13 65One of the most trusted carburetors of all times -the 1850! Its 600 CFM of airflow, vacuum secondaries, single fuel inlet and mechanical choke makes it amazingly universal. The 1850C has a Gold Dichromate finish for corrosion protection and classic Holley looks. Don't trust your performance to just anyone, Holley is the only modular carburetor company that has been in business for over 100 ...

Identify your Carburetor by Model/Picture. We have the largest inventory of marine 1, 2 and 4 barrel remanufactured marine carburetors, as well as throttle body injection. Our remanufactured marine carburetor catalog covers MerCruiser, OMC, Volvo Penta, and all inboard carburetors including Crusader, Ford and General Motors.

The most recent nutrition research commands the heft of a broad sampling of people, which earns it reason for closer inspection. A popular method for losing weight in the short-ter...May 26, 2011 · LOCATING THE LIST NUMBER: The List number for a Model 2010, 2300, 4010, 4011, 4150, 4160, 4165, or 4175 carburetor can be found on the right side of choke air horn. The List number for the 4500 can be found on the top of the main body casting. Below the list number is a date code that will contain no more than four (4) digits. Holley Carb Identification. Have Holley Carb, guy I got it from said it was a Holley 750 double pumper. Numbers I found were 6R1717B, 8485 and 1947 on the extender plate things. 45R-1 on the feed lines. Was told it was rebuilt last summer. Other then that it has mechanical secondaries.Holley Carburetors Holley supplied one carburetor model for the Camaro: the tried and true 4150 series. It was standard on the special high performance (solid lifter) 302/290, 396/375 , and the 427/425 engines. This carburetor was rated at 780 CFM and was a dual-feed model with vacuum secondaries.You know about cauliflower rice, but broccoli rice is the cousin that hasn't received as much attention. Yet. Make one of these low-carb recipes that uses the green vegetable in pl...Holley Carburetor: Booster Science Guide. July 27, 2015 by Muscle Car DiY. The design of the booster can have dramatic effects on the engine’s output and fuel consumption. Having an understanding of boosters can put you in the position of being able to enhance high-RPM output without sacrificing low-speed output.This carburetor was made by Holley , The Holley Brothers Company was started in 1905 in Detroit Michigan then became the Holley Carburetor Co . It is a H4-4150EG . This carburetor has a part number of R7921 LIST 7921 and used on 77 IHC Gov CAL . Check here for specific Muscle car Info: Referenced by ; Holley R7921 or LIST 7921 ...FEATURES INCLUDE: Calibrated for optimum performance with engines operating in the idle-to-5,500 RPM range. Calibrations available for fuel economy, off-road and high-performance street or track use. Available in 500 CFM, 600 CFM, 750 CFM and 800 CFM with electronic or manual choke. The ideal stock replacement carburetor for cars, trucks, 4x4s ... Demon Carburetors™, the first new design in racing carburetion in 40 years, have many unique features that make them the ultimate choice for performance enthusiasts, like yourself. This manual will discuss the special points and unique features of the Demon carburetors, and the correct procedures for their proper installation and tuning. The words Holley and carburetors go together like gearheads and grease. Holley's famous carbs have been found on street rods, muscle cars, and race cars for decades, and you can bring that same legendary performance to your ride, too! Holley carburetors are built in theUSAand 100 percent flow tested for out-of-the-box performance.

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The number 5 designates an emission carburetor from California. The digit following the number 2 (or 5), will indicate the type of GM car it was originally installed. A 4 would mean it is for a Buick, a 5 …Holley offers a variety of replacement and upgrade metering block and plates for your Holley CarburetorDescription. Service Holley 4053 CARBURETOR date code 892. This is a Camaro carburetor. The number above that in the picture is the General Motors id number 3923289-DZ. Restored to its original Holley color, all of the steel hardware has been re-plated to the original finish. Carburetor retains the factory Holley calibration.Holley recommends the No. 1 position for idle speeds below 900 rpm and suggests moving to the No. 2 position for engines that idle above 900 to 1,000 rpm. Here's a simple tip that can save tons of effort. Make sure the accelerator pump linkage moves the arm to the diaphragm as soon as the throttle is moved.The Holley power valve size chart includes values ranging from 5 to. Choosing the correct power valve size for your engine requires examining the vacuum level under load and picking a power valve that opens just as the engine requires more fuel. It’s crucial to know your engine’s vacuum requirements during idle, cruise, and wide-open throttle.This carburetor was made by Holley , The Holley Brothers Company was started in 1905 in Detroit Michigan then became the Holley Carburetor Co . It is a H4-4150 . This carburetor has a part number of 4779 and used on 750 CFM Double Pumper . Check here for specific Muscle car Info. Referenced by ; Holley 4779.Installation and Adjustment Instructions – 199R10881. CONGRATULATIONS on your purchase of Holley Dominator Series carburetor! We feel that you have purchased the finest performance carburetor manufactured today. Should you need information or parts assistance, please contact our Technical Service Department at 1-866-464-6553 or 1-270-781-9741 ...Description. Original Holley 3419 CARBURETOR date code 634. This is a Chevelle 396 engine Carburetor. The number above that in the picture is the General Motors id number 3886087-EJ. Restored to its original Holley color, all of the steel hardware has been re-plated to the original finish. Carburetor retains the factory Holley calibration.OMG Billet Race Methanol Carburetor. OMG Billet Street Strip E85 Carburetor. OMG Billet Street Strip Gas Carburetor. OMG Billet Street Strip Methanol Carburetor. Our Facebook Feed. Go. World Champion Drag Race Carburetor and Throttle Stop Technology. ATM Innovation NEXT Generation In High Performance Carburetors and Fuel Systems.This carburetor was made by Holley , The Holley Brothers Company was started in 1905 in Detroit Michigan then became the Holley Carburetor Co . It is a H4-4160 . This carburetor has a part number of 1850-2 and used on 600 CFM . Check here for specific Muscle car Info: Referenced by ; Holley 1850-2 ...The Holley power valve size chart includes values ranging from 5 to. Choosing the correct power valve size for your engine requires examining the vacuum level under load and picking a power valve that opens just as the engine requires more fuel. It's crucial to know your engine's vacuum requirements during idle, cruise, and wide-open throttle.LOCATING THE LIST NUMBER: The List number for a Model 2010, 2300, 4010, 4011, 4150, 4160, 4165, or 4175 carburetor can be found on the right side of choke air horn. The List number for the 4500 can be found on the top of the main body casting. Below the list number is a date code that will contain no more than four (4) digits. ….

Holley Carburetors. Filter by Availability Filter Results Individual Parts. Part Groups. Results 1 - 3 of 3 25 Records Per Page Default Sort . Holley Street Avenger Carburetors 0-80870. Holley Street Avenger Carburetors 0-80870 Carburetors, Street Avenger, 870 cfm, 4-barrel, Square Bore, Electric Choke, Vacuum Secondaries, Dual Inlet, Shiny ...NOMENCLATURE - MODEL 4150/4160 Ref. No. Description Ref. No. Description 1 Dashpot Nut 2 Dashpot Assembly 3 Da shpot Bracket Screw 4 Dashpot Bracket 5 Throttle Lever Extension Screw 6 Throttle Lever Extension Nut 7 Lockwasher Extension Nut 8 Throttle Lever Extension 9 Solenoid Bracket Screw 10 Solenoid Bracket Screw 11 Solenoid Bracket 12 Solenoid AssemblyYou know about cauliflower rice, but broccoli rice is the cousin that hasn't received as much attention. Yet. Make one of these low-carb recipes that uses the green vegetable in pl...ericnova72. 22556 posts · Joined 2007. #9 · Feb 18, 2021 (Edited) That's not a Demon carb....that's an even older version of Barry Grant Carburation, back before Demon, before Claw, to when he was just a custom carb builder using Holley style parts. Much like AED Carbs, or Pro Systems, or Horsepower Innovations carbs are today.Detailed Description. Carburetor; Street; Holley Replacement Carburetors are engineering to improve performance and keep you emission legal. The 0-6210 is a Model 4165 Spread Bore designed to fit several applications Gold Dichromate Finish For Corrosion Resistance with Classic Look. Improves Performance Over Stock Carburetor.This carburetor was made by Holley , The Holley Brothers Company was started in 1905 in Detroit Michigan then became the Holley Carburetor Co . It is a H4-4165 . This carburetor has a part number of R6211 LIST 6211 and used on Holley Spreadbore 800 CFM . Check here for specific Muscle car Info. Referenced by ; Holley R6211 or LIST 6211.8. Cover intake manifold carburetor flange with a clean rag or towel to prevent any foreign objects from falling into the engine. Installation of New Carburetor 1. Set old carburetor and new carburetor side-by-side on work bench. 2. Examine linkage connection (throttle cable [rod] and kickdown cable [if applicable]) transfer to new carburetor inContains a complete list of all Holley carburetors, including automotive, farm, industrial and marine along with their corresponding repair kits. The listing consists of over 3,500 applications covering vehicles from 1957 to present.The Holley 1904 is a 1 barrel, downdraft carburetor and has three basic parts, the main body, throttle body and the float bowl. The main body includes the metering block, float and the economizer. The float bowl mounts on the front of the carburetor and can be metal, or glass. The glass bowl is becoming a rare piece to find, undoubtedly because ... Holley carb identification chart, Enter your carburetor list number below. Carburetor Selector. Engine: Your engine's cubic inches. Your expected maximum RPM (Redline) Stock. Mildly Modified Learn. Highly Modified Learn. What type of carburetor are you looking for? 2-Barrel. 4-Barrel. Gasoline. Methanol. E-85. Automotive. Marine. Is your application supercharged? Yes. No., Spring Cleaning Sale. Clearance. Home/. Air & Fuel Delivery. Air & Fuel Delivery. Holley is the source for your Air & Fuel delivery upgrades! From Carburetors to the latest in EFI Fuel Injection Systems and Fuel Pumps. We have your products from air cleaners to fuel tanks and everything in between., Holley Street Avenger 770 cfm Square Bore 4150 4BBL Carburetor - 0-83770. Part #: 0-83770. Line: HLY. Check Vehicle Fit. 90 Day Limited Warranty. Carburetor Type: 4150. CFM Rating: 770 cfm., NOTE: This carburetor was designed with a dual mounting pattern, so that it can be installed on a manifold machined for a 4150 or 4500 series carburetor. WARNING! Holley Performance Products highly recommends that a quality fuel filter be installed with any replacement carburetor to catch any debris that may still remain in the system., Holley carburetor identification chart Holley carb hunter's guide Holley 2 barrel carburetor identification. Carburetor holley 2280 charts specifications autozone repair fig 1983 2245 size. Holley carburetor specifications, list numbers, jetting ~ current newsHolley 2 barrel carburetor diagram Holley 2300 2380 carburetionHolley carburetor ..., Accelerator Pump Cam Selection And Installation On Holley Carbs. Bill Tichenor. 12/02/2009. 10 min read. Share. Carburetor Installation and Tuning. Support Video. Video. Accelerator pump cams on Holley carbs can be swapped out to deliver advanced or delayed accelerator pump delivery depending on your engine's normal idle …, Classic Holley carbs have been a staple for rodders around the world for decades. They're calibrated for use on stock to mildly modified vehicles and have that classic Holley look. Holley's 0-1848-1 is calibrated and intended for small V8s. Plus, it is Gold Dichromate coated for durability and classic Holley looks. Don't trust your performance to just anyone, Holley is the only modular ..., Companies in the Industrial Goods sector have received a lot of coverage today as analysts weigh in on Caterpillar (CAT – Research Report), Ho... Companies in the Industrial Good..., The power enrichment system supplies additional fuel to the main system during heavy load or full power situations. Holley carburetors utilize a vacuum operated power enrichment system and a selection of power valves is available to "time" this sys-tem's operation to your specific needs. Each Holley power valve is stamped with a number to ..., The pump cam determines the total volume of fuel and affects delivery rate. The pump shooter affects delivery rate and helps determine the duration of the shot. There are two pump cams, which can be purchased separately. Holley P/N 20-80 has two operating locations and Holley P/N 20-81 has one operating location., You may have birds in your chimney if you are hearing rustling and chirping. Learn more about identification, potential prevention, and legal removal. Expert Advice On Improving Yo..., Welcome to our latest video, where we'll guide you through the process of identifying a Holley carburetor even when the model numbers are missing. Holley car..., The Double Pumper gets its name from the twin accelerator pump outlets (arrows) for both the primary and secondary throttle bores. This is an HP version carburetor where the choke housing is removed for smoother air inlet into the carburetor. Among the most popular 750 cfm Double Pumper Holleys is the traditional PN 0-4779C., Oct 27, 2023 · The Holley 4-barrel carburetor is one of the most famous pieces of speed equipment ever built. With an unbroken production run spanning more than six decades, this iconic design stretches through the vast majority of hot rodding’s entire history. It’s a legacy that includes all facets of custom cars, racing, and rodding. , devices. Holley offers a USB cable with a sealed connector, PN 558-409 for applications were the USB cable will be plugged in, and the ECU is mounted in a dirty environment. HP ECU - The HP ECU has two main connectors: J1A - The first connector next to the USB connector is the "J1A" connector (34 pin). This connector is primarily an ..., The number 5 designates an emission carburetor from California. The digit following the number 2 (or 5), will indicate the type of GM car it was originally installed. A 4 would mean it is for a Buick, a 5 …, D: 1970's. E: 1980's. F: 1990's. All Ford carburetors have the number '9510' in them. An example of a complete carburetor number as it might appear on a tag: D3TF-9510-CC. D means the 70's decade, 3 means 1973. In our lists, we abbreviate this number as D3TF-CC because all carbs have a '9510' number. Ford, Autolite, Motorcraft carburetor numbers., 4. Disconnect electric choke wires if equipped (identify if necessary). 5. Disconnect all linkage and return springs. 6. Remove the 4 hold down nuts and washers (if used). 7. Remove carburetor from intake manifold. 8. Cover intake manifold carburetor flange with a clean rag or towel to prevent any foreign objects from falling into the engine., The amount of air bleeds a carburetor will have is dependent on the number of throttle bores and circuits the carburetor has. In the context of racing carburetors, it helps to think of them as (4) one barrels. Most racing carburetors will have either 8 or 12 air bleeds depending on whether they are 2 or 3 circuit., Holley Carburetors. Filter by Availability Filter Results Individual Parts. Part Groups. Results 1 - 3 of 3 25 Records Per Page Default Sort . Holley Street Avenger Carburetors 0-80870. Holley Street Avenger Carburetors 0-80870 Carburetors, Street Avenger, 870 cfm, 4-barrel, Square Bore, Electric Choke, Vacuum Secondaries, Dual Inlet, Shiny ..., DjD. 27013 posts · Joined 1999. #5 · Oct 21, 2002. 3310-1 is a 780cfm carb. It wasn't used in production by chevrolet in '69, I can't say for other years though. The 2 780's I am aware of are, the Z/28: List - 4053 DZ and the other was a List 4346 I believe... Both these carbs have a secondary power valve and the 4346 has a vent in the ..., This carburetor was made by Holley , The Holley Brothers Company was started in 1905 in Detroit Michigan then became the Holley Carburetor Co . It is a H4-4150 . This carburetor has a part number of 4779 and used on 750 CFM Double Pumper . Check here for specific Muscle car Info. Referenced by ; Holley 4779., Learn how to identify Holley carburetors by list number, date code, and application. Find out where to look for service parts and rebuild kits for your vintage or modern Holley carb., If the boosters (they project into the venturii, fuel comes out of them) come straight out then it is likely a 650cfm carb; if the boosters step down and the throttle blades are #172, then its likely a 750 cfm; if the baldes are #180 it'll be an 850 cfm. The blade numbers can be read on the bottom, the numbers'll be on each blade and facing ..., This carburetor was made by Holley , The Holley Brothers Company was started in 1905 in Detroit Michigan then became the Holley Carburetor Co . It is a H4-4160 . This carburetor has a part number of 1850-4 and used on 600 CFM . Check here for specific Muscle car Info: Referenced by ; Holley 1850-4 ..., July 16, 2017 by Muscle Car DiY. The 1950s saw the introduction of the Holley Series 4150 4-barrel on the 1957 Thunderbird. It was the beginning of the modular Holley 4-barrel, as we know it today. It was the first true performance carburetor and it became standard equipment on many high-performance automobiles., The HP Ultra is an expensive carburetor, so Holley introduced a much more affordable Street HP 750 in the bright finish in either vacuum-secondary (PN 0-82750) or double-pumper (PN 0-82751 ..., Products. Carburetors & Accessories. After a breakthrough main body upgrade in the 90's that was so popular it spawned a whole line of carburetors and accessories that have been leading the aftermarket for almost the last 20 years. PROFORM's signature Race Series Purple is very recognizable, and just like everything bearing the PROFORM name ..., A hot rod staple for over four decades! Dual feed fuel inlets assure you get all the fuel you need while its vacuum secondaries and manual choke make it amazingly universal. Plus, its classic Gold Dichromate finish provides serious muscle car looks and durability. The famed 0-3310 is one of the ten original inductees into the Hot Rod Magazine Speed Parts Hall …, On this ID page you will be able to visually verify that you have selected the correct carburetor for your application and then place your order or call 1.800.250.8746. Our staff will verify you have ordered the correct marine carburetor from the carburetor information you fill out in the ordering process. All carburetors have a complete one ..., Carburetor kits and parts for Holley 4165, 4175 spreadbore carbs, vacuum secondary, double pumper. Phone 888-664-6462 Email [email protected] . Toggle navigation. Home ; Catalog. ... Rochester Model B History and ID. Zenith Model 28/228 Identification. Contact The Carburetor Doctor Inc. PO Box 4267 Tulsa, OK 74159 [email protected]., I have an early Barry Grant Demon Carburetor on a 350 chevy motor in my coupe. I cant identify what type it is or how many CFM . There are no numbers, or markings other than a 6 cast into the rear top of the body. It is a dual feed, with vaccume secondaries and four corner idle screws. The base plate primary butterflies are stamped …, Place the new carburetor flange gasket, provided with the carburetor, in the proper position on the intake manifold. Place the carburetor on top of the flange gasket on the manifold. Install the hold down nuts and snug down progressively in a “crisscross” pattern (60-80 in./lbs.), as shown in Figure 5. Figure 5.