Holley 0-7320-1 Dominator HP 1150 CFM Mechanical Secondary Four Barrel Carburetor Changeable air bleeds offer precision tuning capabilities Precision machined to tight tolerances for unsurpassed sealing Notched floats and jet extensions provide continuous fuel delivery under extreme conditions Features four corner idle system for precise idle control Symmetrical Venturii bores offer balanced airflow for increased horsepower