Pre-Calibrated At The Factory For Optimum Performance and Drivability on a Wide Variety of Applications
Reduces Turbulence And Smoothes Air Entry Into The Venturi
Eliminates Choke Tower and Associated Hardware of Standard Holley Double Pumper
This Holley HP retrofit main body kit converts 0-4777, 0-4778 and 04779 carburetors to a 750 CFM HP main body for increased horsepower, torque and airflow.