0-80457SA 600 CFM Four Barrel

Description Holley’s 0-80457SA is constructed from aluminium which compared to its zinc counterpart equates to a weight savings of 40%! Holley’s new aluminium 0-80457SA will hold its shine and also can be hand polished for a custom look! Features Vacuum secondaries allow use on wide variety of vehicles Electric choke for easy warm up Single feed fuel inlet External Float Adjustment Calibrated for excellent street performance Ford A/T kickdown, does not work with A.O.D. transmissions 1 timed (spark) port, 1 full vacuum, and 1 PCV port Performance upgrade for stock to mildly modified vehicles Universal calibration for easy bolt-on performance