PERFORMANCE DESIGN: Updated replacement For Quick Fuel Brawler Race Series 850 CFM 4-Barrel Carburetor BR-67201, High flow 4-barrel 4150 double pumper carburetor with square bore design and annular boosters for maximum power delivery COMPATIBILITY: Direct replacement for Holley Quick Fuel Brawler Race Series 850CFM 4-Barrel Carburetor # BR-67201 and replacement For Holley Street HP 850CFM 0-82851SA double pumper carburetors, ensuring perfect fitment and reliable performance RACING FEATURES: Dual feed fuel inlets and mechanical secondary throttle plates optimize fuel delivery for high-performance applications COMPLETE KIT: Includes mounting gasket, fuel line connections, and all necessary hardware for hassle-free installation CONSTRUCTION: Precision-machined aluminum body with high-quality materials for consistent fuel atomization and reliable operation Elevate your vehicle's performance with this high-performance 4-barrel double pumper carburetor. Designed as a direct replacement for Holley Double Pumper 4150 carburetors, this square bore carburetor features advanced annular booster technology for superior fuel atomization and throttle response. The precision-engineered aluminum construction ensures durability while maintaining optimal weight characteristics. This drag race-ready carburetor comes complete with all necessary hardware, including mounting gaskets and fuel line connections. The double pumper design delivers additional fuel under hard acceleration, making it perfect for high-performance street and race applications. The kit includes essential components like fuel inlet fittings, a mounting gasket, and vacuum lines for a complete installation. The robust construction and precise calibration make this carburetor an excellent choice for serious performance enthusiasts looking to maximize their engine's potential.