1150 CFM - 4500 - Mechanical Secondaries - Hard Core Gray - Gasoline;
1150 CFM - 4500 - Mechanical Secondaries - Hard Core Gray - Gasoline;All aluminum construction saves 3.8lbs. over original models (28% weight savings); Hard Core Gray with black anodized billet aluminum metering block and booster inserts; Designed for use on Drag race, Pro Street, or any high horsepower engines; Calibrations optimized for today's larger race engines and new fuels; Fully machined from venturii throat to throttle bore for predictable & repeatable performance; Integrated idle bypass valve allows for adjustment of idle while maintaining correct throttle plate to transfer slot relationship; 12 hole billet booster inserts for superior atomization and crisp throttle response; Metering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors); Dual 50cc accelerator pumps provide the perfect amount of fuel from idle to full throttle; Fuel bowls provide 20% more fuel capacity while controlling slosh with internal baffling; Clear sight windows on both sides of bowls for easy and safe fuel level adjustments; Built in drain plug in front center of bowl provides easy access to empty contents of bowl; -8 (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side; Factory ready TPS mounting points for use with data acquisition systems (Holley TPS P/N 534-214 available); Knurled (hand adjustable) primary and secondary curb idle screws allow for easy idle adjustment without the use of tools; Contoured hex head squirter screws for streamlined airflow; 100% wet-flow tested by Holley technicians to assure it arrives ready to run!; Fully adjustable stainless steel external linkage can be adjusted for 1:1 progressive, or soft progressive throttle activation. No linkage parts under the carburetor;