BR-67255 Carburetor 4150 Model 650 CFM 4 Barrel For Holley Quick Fuel Brawler Double-Pumper Carburetor Mechanical Secondary Electric Choke, Square Bore Flange

Upgrade your V8 engine’s performance, drivability, and reliability with the replacement For Holley BR-67255 4150 Series 650 CFM 4 Barrel Double-Pumper Carburetor. Precisely engineered for street/strip use and fully compatible with Holley, Quick Fuel, and Brawler 4150 platforms, this carburetor delivers instant throttle response, smooth power delivery, and consistent fuel delivery for 275–500 HP engines. Built with heavy-duty diecast aluminum and hand-assembled for precision, it is designed to handle high-load driving, hard acceleration, and daily commuting without compromise. Featuring a Mechanical Secondary and Double-Pumper design, this 650cfm carburetor eliminates hesitation and delivers immediate fuel enrichment during wide-open throttle and quick launches. The Electric Choke provides reliable cold starts in all weather conditions, automatically adjusting for smooth warm-up and stable idle—no manual adjustments needed. The Square Bore Flange ensures a direct, OEM-style fit for easy installation on most 350–454 ci V8 engines, making it ideal for muscle cars, street rods, trucks, and performance street machines. Equipped with dual inlet fuel bowls with sight windows, you can easily monitor and adjust fuel levels for consistent performance. Billet metering blocks and precision throttle shafts improve metering accuracy and extend service life, while 4-corner idle adjustment allows fine-tuning for smooth idle and crisp throttle response across all RPM ranges. The polished diecast aluminum body resists heat, corrosion, and warping, maintaining stable fuel atomization even under extreme conditions. Whether you’re replacing a worn carburetor, upgrading for more power, or building a street/strip engine, the Brawler BR-67255 650cfm provides a ready-to-run calibration that balances performance, efficiency, and drivability. It comes complete with mounting gaskets and necessary hardware for straightforward installation, so you can spend less time tuning and more time driving. Invest in a carburetor that combines race-proven design with street-friendly functionality. The BR-67255 650 CFM 4 Barrel Carburetor gives you stronger acceleration, smoother idle, easier starting, and durable performance you can trust for years.

• This Replacement For Holley BR-67255 4150 Series 650 CFM 4 Barrel Carburetor is built with performance-proven functions to deliver reliable fuel delivery, smooth engine operation, and consistent power for street and performance engines. Every feature is engineered to support stable idle, crisp throttle response, easy starting, and durable function under various driving conditions.
• This Replacement For Holley 650cfm carburetor double-pumper accelerator pump system functions to inject extra fuel instantly when the throttle is opened, improving throttle response, reducing lag, and maintaining proper air-fuel mixture during quick acceleration and hard launches.
• The BR-67255 650cfm carburetor with square bore flange design functions to provide a standard mounting interface that fits most 4150-style intake manifolds. This allows direct bolt-on installation and proper sealing for maximum airflow efficiency.
• Dual fuel inlet and sight glass fuel bowls function to allow stable fuel supply and easy visual monitoring of fuel level, helping maintain consistent fuel delivery and preventing lean conditions during heavy load.
• Constructed with a die-cast aluminum body, the carburetor functions to resist heat soak and corrosion, ensuring stable performance and long service life in daily driving and performance use.
• This 4 barrel Square Bore 650 cfm carburetor is designed to function as a complete, ready-to-install performance upgrade that supports reliable starting, smooth driving, strong acceleration, and consistent engine performance for V8 engines.