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Return to Parts List Category : P- Carburetors (Mech Sec) HLY 0-80556-1 1150 CFM 4-BBL RACE CARB MODEL 4500 / MECH SECONDARY / 1 X 4 CARB SET UPS / 3 CIRCUIT METERING $1055.95 Holley Dominator® Carburetors were designed specifically for making Top End Horsepower and Torque in High End Racing Engines. Race Ready Out of the Box; Model 4500™; Mechanical Secondary; 1 x 4 Carburetor Set–ups; 2–Circuit Metering Features Designed for use on Drag race engines Calibrated for a 1x4 setup Includes notched float and jet extensions Progressive Secondaries Dual 50cc accelerator pumps 2 Circuit Metering Calibrated for Gasoline Dual fuel inlets 4 corner idle Screw in air bleeds Annular Boosters Venturii Size 1.830 Throttle bore 2.000 Aluminum throttle plates Click on photo below to enlarge