650 CFM 4 BBL Carb Electric Choke Square Bore Fits Chevy 350 Ford 302 351W Dodge For Sale - New and Used

Description🔧 650 CFM 4-Barrel Brawler Double-Pumper Carburetor | Electric Choke | Mechanical Secondaries | Square Bore 4150 Flange | Replacement for BR-67255 | For Holley Quick Fuel Brawler & Small/Big Block V8 Engines

Building a street machine, muscle car, or hot rod and need serious fuel delivery with razor-sharp throttle response? This650 CFM 4-Barrel Brawler Double-Pumper Carburetoris the performance-proven answer. Featuringmechanical secondariesfor instant response, anelectric chokefor reliable cold starts, and asquare bore 4150 flangethat bolts right onto your intake, it's the direct replacement for the Quick Fuel/Holley Brawler BR-67255. Crafted from lightweight die-cast aluminum with dual inlet fuel bowls and sight glass windows, this carburetor is purpose-built for street performance — delivering the crisp acceleration, tunability, and classic American V8 sound that muscle car enthusiasts crave. Whether you're restoring a classic Chevy, Ford, Mopar, or Pontiac, or dropping a small block or big block V8 into a custom build, this 650 CFM double-pumper gives you the perfect balance of airflow and control.

💡Why a 650 CFM Double-Pumper?

• 🔴 A double-pumper design meanstwo accelerator pumps— one for primary, one for secondary — delivering an immediate shot of fuel the moment you stab the throttle

• 🔴Mechanical secondariesopen instantly with the primaries, eliminating the lag of vacuum-operated secondaries — perfect for performance cams, high-compression builds, and aggressive street/strip driving

• 🔴 Theelectric chokeautomatically enriches the mixture for cold starts and disengages as the engine warms — no manual choke cable to route, just a 12V ignition-switched connection

• 🔴650 CFMis the sweet spot for most street-driven small blocks (283-350) and mild big blocks — enough flow for power, but not so much that you lose low-end torque and drivability

✨Key Features & Benefits

• ⚡Double-Pumper Design for Instant Throttle Response— Dual accelerator pumps (primary + secondary, 30cc each) deliver an immediate fuel shot the moment you hit the throttle. No bog, no hesitation, no flat spots. Just crisp, neck-snapping acceleration — exactly what a performance V8 demands.

• 🎯Mechanical Secondaries— Secondary barrels open in sync with the primaries for immediate, full-throttle response. No waiting for manifold vacuum to build. Ideal for performance camshafts, higher compression engines, and drivers who want instant power on tap.

• 🔌Electric Choke for Reliable Cold Starts— 12V electric choke coil automatically enriches the mixture on cold start and disengages as the engine warms up. No cable routing, no manual intervention — just connect to ignition-switched power and enjoy dependable starts even in cold climates.

• 🔧Square Bore 4150 Flange— Features the standard 5-3/16" × 5-5/8" square bore bolt pattern. Bolts directly onto any square bore intake manifold.Can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetorswith the same flange pattern.(If your intake is a spreadbore style, a spreadbore-to-square-bore adapter — such as Mr. Gasket #1932 — is required.)

• 🪶Lightweight Die-Cast Aluminum Construction— The main body is constructed of lightweight die-cast aluminum components, reducing heat soak and keeping the fuel charge cool for denser combustion. The polished aluminum finish looks great on any engine bay and resists corrosion.

• 👁️Dual Inlet Fuel Bowls with Sight Glass Windows— Both primary and secondary fuel bowls feature sight glass windows for safe and easy float level monitoring and adjustment. No more guessing — you can visually check your fuel level at a glance.

• 🎛️Four-Corner Idle Adjustment— All mechanical secondary models feature four-corner idle adjustment, giving you precise control over idle mixture and quality. Achieve a clean, stable idle even with aggressive performance camshafts.

• 🔩Universal Throttle Lever & Mounting Flexibility— Comes with a universal throttle lever for Ford A/T deceleration, GM 700 R4 mounting holes, and can be mounted with brackets for Chrysler vehicles. Adaptable across multiple American V8 platforms.

• 🎚️Easy Adjustability— Designed with today's fuel blends in mind, offering clean idle quality, strong mid-range, and easy tuning. Features adjustable air bleeds, replaceable jets, and a 6.5 power valve for precise fuel curve customization.

• 🛣️Street Performance Focused— Balances airflow with control for the perfect street/strip carburetor. Strong mid-range power, excellent throttle response, and reliable everyday drivability.

• 💰Performance at a Smart Price— Delivers the performance of higher-priced carburetors in a budget-savvy package. Get race-proven double-pumper technology without the premium price tag.

• 🇺🇸American V8 Heritage— Purpose-built for the engines that power America's most iconic muscle cars, trucks, and hot rods. From a Chevy 350 to a Mopar 440, this carburetor speaks the language of American performance.

🔢Part Number & Interchange Information✅ Manufacturer Part Number / Other Part Number:

• BR-67255

🔄 Replacement For:

• Quick Fuel / Holley Brawler 650 CFM Diecast Carburetor, 4150 Model, Mechanical Secondary, Electric Choke

🔧 Direct Replacement For These Carburetor Styles (with 5-3/16" × 5-5/8" Square Bore Flange):

• Holley4150-style carburetors

• Edelbrocksquare bore carburetors

• Carter AFBsquare bore carburetors

• Autolitesquare bore style carburetors

📌Important Fitment Note:This carburetor has asquare bore flange bolt pattern. It directly replaces Holley, Edelbrock, Carter AFB, and Autolite style carburetors with the 5-3/16" × 5-5/8" bolt pattern.If you have a spreadbore style intake manifold (such as a Quadrajet-style manifold), you will need a spreadbore-to-square-bore adapter— similar to the Mr. Gasket #1932 — to install this carburetor.

🚗Engine & Vehicle Compatibility

This 650 CFM carburetor is suited for a wide range of American V8 engines across multiple brands. The followingengine displacementsare within the compatible range:

Chevrolet Engines:

• ✅ 283

• ✅ 302

• ✅ 305

• ✅ 307

• ✅ 327

• ✅ 350

Ford Engines:

• ✅ 351

• ✅ 302

Mopar Engines:

• ✅ 340

• ✅ 383

• ✅ 413

• ✅ 440

• ✅ 426

Brands This Carburetor Serves:

• 🏁Chevy

• 🏁Ford

• 🏁Oldsmobile

• 🏁Pontiac

• 🏁Buick

• 🏁Plymouth

• 🏁Dodge

⚠️Fitment Guidelines:

• This carburetor is designed style=\"line-height: 1.5em;\">Requires asquare bore 4150-style intake manifold(5-3/16" × 5-5/8" bolt pattern)

• Spreadbore manifolds require an adapter(e.g., Mr. Gasket #1932)

• 650 CFM is ideal for small blocks (283-350) and mild big blocks up to approximately 450 HP

• For high-performance big block applications exceeding 450 HP, consider a higher CFM carburetor

• This product is intended fornon-emissions controlled vehicles(1965 and older U.S.-manufactured California certified vehicles; 1967 and older U.S.-manufactured federally certified vehicles; 1967 and older foreign-manufactured vehicles)

• Professional installation is highly style=\"font-size: 14.4px; white-space: normal;\">

• Condition:100% Brand New

• Part Type:Carburetor

• Manufacturer Part Number:BR-67255

• CFM Rating:650 CFM

• Barrel Count:4 Barrels

• Choke Type:Electric Choke

• Secondary Type:Mechanical Secondaries

• Circuit Count:2 (Double-Pumper)

• Flange Type:Square Bore 4150 (5-3/16" × 5-5/8" bolt pattern)

• Fuel Type:Gasoline

• Fuel Inlet:Dual, with sight glass windows

• Fuel System:Carbureted

• Body Material:Die-Cast Aluminum

• Body Finish:Polished

• Throttle Bore:1-11/16"

• Primary Main Jet:70

• Secondary Main Jet:74

• Primary Power Valve:6.5

• High Speed Air Bleed:28/28

• Idle Air Bleed Size:70 / 70

• Booster Design:Down Leg

• Idle Adjustment:Four-Corner Idle

• Emission Code:3

• Marine Approved:No

• Mounting Hardware Included:No

• Throttle Lever:Universal, for Ford A/T deceleration

• GM 700 R4 Mounting Holes:Yes

• Chrysler Vehicle Mounting:Can be mounted with brackets

📦Package Includes

• 1 × 650 CFM 4-Barrel Brawler Double-Pumper Carburetor (BR-67255)

(Mounting hardware, gaskets, and instructions are NOT included. Professional installation is highly recommended.)

🔧Installation Overview

🛠️Professional installation is highly recommended.If you're an experienced mechanic, follow the general procedure below:

1. Remove the old carburetor— Disconnect the battery negative terminal. Remove the air cleaner assembly. Disconnect fuel lines, throttle linkage, choke cable/electrical connection, vacuum hoses, and electrical connectors. Unbolt the old carburetor from the intake manifold.

2. Clean the mounting surface— Thoroughly clean the intake manifold's mounting flange. Remove old gasket material and debris. Ensure the surface is perfectly clean for a proper seal.

3. Verify flange compatibility— Confirm your intake manifold has asquare bore 4150 flange(5-3/16" × 5-5/8" bolt pattern). If it's a spreadbore manifold, install a spreadbore-to-square-bore adapter first.

4. Install the new carburetor— Place a new carburetor base gasket onto the intake manifold. Carefully lower the new BR-67255 carburetor onto the studs, aligning the bolt holes.

5. Secure the mounting nuts— Hand-start all four mounting nuts, then torque them evenly in a crisscross pattern to the manufacturer's specification. Do not overtighten — die-cast aluminum can crack.

6. Connect the fuel lines— Attach the dual fuel inlet fittings to the fuel bowls. Connect your fuel supply line to one of the inlet ports (the other can be used as a return or plugged with the supplied plug).

7. Connect the electric choke— Route a 12V ignition-switched power wire to the electric choke terminal. This ensures the choke only receives power when the ignition is ON.

8. Attach throttle linkage— Connect your throttle cable or linkage to the universal throttle lever. For Ford A/T applications, use the deceleration lever. For GM 700 R4, use the provided mounting holes. For Chrysler vehicles, use appropriate brackets.

9. Reconnect vacuum hoses and vents— Attach all necessary vacuum lines to the correct ports. Connect the crankcase ventilation hose to the designated port.

10. Set initial adjustments— Adjust the float levels via the sight glass windows. Set the idle mixture screws to the baseline setting. Adjust the idle speed.

11. Prime and start— Turn the ignition key to the ON position (without starting) for a few seconds to allow the electric fuel pump to prime the carburetor. Then start the engine.

12. Fine-tune— With the engine running and warmed up, fine-tune the idle mixture, idle speed, and float levels for optimal performance.

⚠️Installation Tips:

• Always disconnect the battery before starting — fuel system work hazard

• Use a new, high-quality carburetor base gasket

• Do NOT use thread sealant on fuel inlet fittings — use the supplied washers to prevent leaks

• Double-check all fuel line connections for tightness before starting the engine

• Verify correct fuel pressure (typically 5-7 PSI for a carbureted system with a mechanical fuel pump, or per your electric fuel pump's regulator setting)

• Ensure the electric choke wire is connected to a 12V ignition-switched source — NOT a constant 12V source

• After installation, check for fuel leaks with the engine running

• Professional tuning may be required for optimal performance with modified engines

• This carburetor is intended for non-emissions controlled vehicles only

🎯Why US Muscle Car & Hot Rod Builders Choose This Carburetor

• 🔧Race-Proven Double-Pumper Technology— The double-pumper design is the gold standard for performance carburetors. Two accelerator pumps mean zero hesitation when you stab the throttle. This is the technology that powers winning street/strip machines across America.

• 🎯Mechanical Secondaries = Instant Power— No vacuum delay. No lag. When you go wide-open throttle, both primary and secondary barrels open instantly, delivering maximum airflow and maximum power. The choice of serious performance enthusiasts.

• 🔌Electric Choke Convenience— Cold morning starts become effortless. The 12V electric choke automatically handles cold start enrichment — no manual cable to pull, no freezing choke plates. Just turn the key and go.

• 🔢Direct Replacement for BR-67255— If your original Quick Fuel or Holley Brawler carburetor carries the part number BR-67255, this is the exact spec replacement. Same 650 CFM, same 4-barrel design, same mechanical secondaries, same electric choke, same square bore 4150 flange.

• 🚗Versatile Across American V8 Platforms— From a Chevy 283 to a Mopar 426 Hemi, this carburetor serves the entire spectrum of classic American V8 engines. The universal throttle lever, GM 700 R4 mounting holes, and Chrysler bracket compatibility make it adaptable across Chevy, Ford, Oldsmobile, Pontiac, Buick, Plymouth, and Dodge applications.

• 👁️Sight Glass Windows = Easy Tuning— No more removing the fuel bowl sight plugs to check float levels. The dual sight glass windows let you visually monitor and adjust float levels safely and easily. Perfect for hands-on tuners who want precise control.

• 🪶Lightweight Die-Cast Aluminum— Reduces heat soak, keeping the fuel charge dense for better combustion. The polished finish looks stunning on any show-quality engine bay.

• 🎛️Fully Adjustable for Your Build— With replaceable jets (#70 primary, #74 secondary), a 6.5 power valve, adjustable air bleeds, and four-corner idle adjustment, this carburetor can be tuned to match your exact engine combination — from a stock 350 to a cammed-up 383 stroker.

• 💰Higher-Priced Performance at a Budget-Savvy Price— Delivers the performance and features of premium carburetors at a fraction of the cost. The smart choice for builders who want race-proven technology without breaking the bank.

• 🇺🇸American Performance Heritage— Whether you're building a '57 Chevy Bel Air, a '69 Camaro, a '70 Road Runner, a '32 Ford hot rod, or a restomod pickup, this carburetor delivers the authentic American V8 performance experience. Crisp throttle response, strong mid-range torque, and the unmistakable sound of a well-tuned double-pumper.

• 🔧Simple Single Fuel Line Connection— Features a simple single fuel line connection for easy plumbing. Great for street performance applications where simplicity and reliability matter.

• 🏁Street-Strip Ready— Balances airflow with control for the perfect street/strip carburetor. Strong mid-range power, excellent throttle response, and reliable everyday drivability — equally at home on Main Street or the drag strip.

• 🛡️Built for Today's Fuel Blends— Designed with modern fuel formulations in mind, delivering clean idle quality and strong performance even with today's ethanol-blended gasoline.

⚠️Before You Buy — Please Confirm:

• Your engine is agasoline-fueledAmerican V8 within the compatible displacement range (283, 302, 305, 307, 327, 350, 351, 383, 413, 426, 440)

• Your intake manifold has asquare bore 4150 flange(5-3/16" × 5-5/8" bolt pattern)

• If you have aspreadbore intake manifold, you have or will acquire a spreadbore-to-square-bore adapter (e.g., Mr. Gasket #1932)

• Your vehicle is anon-emissions controlled vehicle(1965 and older CA-certified; 1967 and older federally-certified or foreign-manufactured)

• You need a650 CFMcarburetor for your engine combination (ideal for small blocks and mild big blocks up to ~450 HP)

• You have or can provide proper fuel line, throttle linkage, and a 12V ignition-switched source for the electric choke

• Professional installation is recommended. No instructions are included.

👉Add to cart todayand unleash the true potential of your American V8! This650 CFM 4-Barrel Brawler Double-Pumper Carburetor (BR-67255)delivers race-proven performance with mechanical secondaries, electric choke, dual fuel bowls with sight glass windows, and four-corner idle adjustment. The square bore 4150 flange bolts directly onto your intake — replacing Holley, Edelbrock, Carter AFB, and Autolite style carburetors with the 5-3/16" × 5-5/8" bolt pattern.Designed for the full spectrum of classic American V8s— from a Chevy 283 to a Mopar 426 — with universal throttle lever, GM 700 R4 mounting holes, and Chrysler bracket compatibility.Crafted from lightweight die-cast aluminum for reduced heat soak and long-term durability.Whether you're restoring a classic muscle car, building a hot rod, or upgrading your street machine, this carburetor delivers the crisp throttle response and tunability that American performance enthusiasts demand.Don't forget to verify your intake manifold's flange type and your engine's CFM requirements before ordering.Bolt on serious performance today — your V8 will thank you! 🏁

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Payment via PayPal (PayPal accepts all major credits/debit cards and eCheque)

ECheque payment will take 3-10 days to get clear, thus DELAYing the shipment.Handling time: 1 business day (Orders are not processed on weekends & holidays)Tracking information will be sent once item is shipped.Local pick-up is unavailable at the moment.For international shipping and shipping to Guam, Hawaii and Alaska, Please contact us before placing the order.Item is shipped to address. Leaving correct address can minimize delay.

For any issues with Defects, Return, Item Exchange request, please contact us first and send us a message first before opening any type of case or request. We devote ourselves making EVERY CUSTOMER in 100% Satisfactory and resolve any problem. We highly value and appreciate your business. Thank you.No returns will be accepted without an RMA number. Please contact us for the RMA number.Return is acceptable within 30 days of delivery.Return for replacement or money back is optional.Returned items must be in the brand new, unaltered and resalable condition.Seller is not responsible for any labor cost, expense in a dealer store, or damage due to wrong installation.

Return is accepted within 14 days after the buyer's receiving the item. (Excluding contrived damagement or misusage).100% money-back Guaranteed!
All product will be tested in 100% before delivery.If the item is defected by the processing of postage,Buyer has up to 14 days from date of receipt for
exchange of a new one.All shipping charges for returned products are to be paid by the buyer,Please contact us for the return address

All messages will be answered within 24 office hours.

Please contact us either by clicking "contact seller" in the "purchase history" section or simply click "ask a question" at the bottom of this page.

If you are unsatisfied with our item or service, please contact us before leaving any response. We are committed to resolve all issues in a friendly and satisfactory manner. We always reply to messages within 2 business days (off-duty at weekend). If you do not get a response from us, then please check your junk or spam mailbox.

Payment via PayPal (PayPal accepts all major credits/debit cards and eCheque)

ECheque payment will take 3-10 days to get clear, thus DELAYing the shipment.ShippingHandling time: 1 business day (Orders are not processed on weekends & holidays)Tracking information will be sent once item is shipped.Local pick-up is unavailable at the moment.For international shipping and shipping to Guam, Hawaii and Alaska, Please contact us before placing the order.Item is shipped to address. Leaving correct address can minimize delay.

TermsFor any issues with Defects, Return, Item Exchange request, please contact us first and send us a message first before opening any type of case or request. We devote ourselves making EVERY CUSTOMER in 100% Satisfactory and resolve any problem. We highly value and appreciate your business. Thank you.No returns will be accepted without an RMA number. Please contact us for the RMA number.Return is acceptable within 30 days of delivery.Return for replacement or money back is optional.Returned items must be in the brand new, unaltered and resalable condition.Seller is not responsible for any labor cost, expense in a dealer store, or damage due to wrong installation.Returns

Return is accepted within 14 days after the buyer's receiving the item. (Excluding contrived damagement or misusage).100% money-back Guaranteed!
All product will be tested in 100% before delivery.If the item is defected by the processing of postage,Buyer has up to 14 days from date of receipt for
exchange of a new one.All shipping charges for returned products are to be paid by the buyer,Please contact us for the return address

Contact Us

All messages will be answered within 24 office hours.

Please contact us either by clicking "contact seller" in the "purchase history" section or simply click "ask a question" at the bottom of this page.

If you are unsatisfied with our item or service, please contact us before leaving any response. We are committed to resolve all issues in a friendly and satisfactory manner. We always reply to messages within 2 business days (off-duty at weekend). If you do not get a response from us, then please check your junk or spam mailbox.

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