Braswell B-7390 Dual 4bbl Carburetors

The Braswell B -7390 was specifically designed as a dual 4 bbl application. Building on the design and record setting performances set forth by the B -7520 2 bbl carburetors, the B-7390 has been taking 4 bbl carbureted engine performance to new levels going to the finals in the first NHRA Pro-Stock race where they were legal. These carburetors are designed to be used where a 4 bbl or "Whole" carburetor is mandated by rules or preferred for packaging reasons. Their design allows them to be machined in a wide range of sizes necessary for today's competition engines. These carburetors offer the ultimate in performance for Pro-Stock, Competition Eliminator, Top-Sportsman, Top-Dragster, Quick-8, and Outlaw racing.

CNC machined from high quality aluminum die-castings, the B-7390's are offered in a wide range of sizes to accommodate engines from 900-2200 plus horsepower for dual 4 bbl use. They feature spread throttle bores for better fuel distribution, longer venturis for smoother fuel metering and an innovative metering system. The fuel jets and their pickups are located so they remain in liquid fuel even when acceleration rates exceed 3.5 G's. The light weight billet metering blocks feature a lengthened main metering well and multiple bleed systems provide for improved metering and tuning flexibility unavailable in the past. The carburetor mounting flange can be used with either the industry standard 5.38" x 5.38" hole mounting pattern or the optimized 5.50" x 5.50" hole mounting pattern. The scoop tray flange has been enlarged to an even 8.00" diameter. Venturi sizes range from 1.90"-2.18", and 2.20"- 2.55" throttle bores. There are also two different size booster venturi castings allowing these carburetors to be tailored to the demands of today's racing engines.

Contact us today to go over your combination and build you the best racing carburetors.

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