3-Circuit Metering, Single Carb Set-Up

HO0-80903HB

0-80903HB

FEATURES: All aluminium construction saves 3.8lbs. over original models (28% weight savings) Hard Core Gray with black anodized billet aluminium 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 Fully adjustable stainless steel external linkage can be adjusted for 1:1 progressive, or soft progressive throttle activation. No linkage parts under the carburetor 100% wet-flow tested by Holley technicians to assure it arrives ready to run!