Proform Carburetor Main Body Holley 850 CFM 4122SMLRD Program an rpm limit that

Program an rpm limit that is ramped in during the launch

The stock control arm mounting position is fine for stock height vehicles

Features:Clip to a coil pack primary lead to produce a stable 12-volt square wave for a tach

from the initial design

Water Outlet Restrictors

Proform Carburetor Main Body Holley 850 CFM 4122SMLRD Program an rpm limit thatDirect replacement Components to turn a street carburetor into a high performance carb: get that extra perfomrance 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 (no re built components). Easy swap in, swap out installation utilizin existing metering blocks, fuel bowls, and base plate. Involves only 14 screws. Flows 850+ CFM. Has adjustable screw in air bleeds, high