Holley has introduced the all new aluminum Track Warrior carburetors. They utilize the best features from Holley's Race Bred Classic 4150 HP carbs, and they have added billet metering blocks, billet base plate, adjustable secondary linkage and knurled (hand adjustable) curb idle screws. The Track Warrior features an aluminum contoured main body design and has screw in air bleeds for precision tuning capabilities. The all new aluminum Track Warrior weighs up to 40-percent less and adds horsepower and torque, pushing on the track performance to the next level. It is available in 650, 750, and 850 CFM versions and is intended for lightweight vehicles w/ manual trans or automatics with high stall and low gearing. Each carburetor is 100-percent wet-flow tested by Holley technicians to assure it arrives ready to run.