Proform Holley Double Pumper Carburetor Main Body BR10074 Sound Barrier

Sound Barrier

fuel injected or carbureted

that are merely stock cold stamped parts (some may be case hardened for a hard surface -- but they lack core strength)

By replacing the restrictive factory exhaust system with free-flowing

optimum reliability can be obtained by employing these rugged chrome moly bolts and studs

Proform Holley Double Pumper Carburetor Main Body BR10074 Sound BarrierDirect Replacement Carburetor Main Body. Component for use on Holley(R) 650 CFM (#4777), 700 CFM (#4778), 750 CFM (#4779) and 800 CFM (#4780) Double Pumper(R) with Mechanical Secondary. Get that extra performance out of your ride in less than 30 minutes! Add up to 25 50 HP with PROFORM's 100% NEW high performance carburetor main body. Easy swap in, swap out installation utilizing existing metering blocks, fuel bowls, and base plate. Involves only 14