Want to upgrade your street carburetor to a high-performance race carb, but don't have the means to do a complete carb swap? If you can turn a screwdriver, you can get increased horsepower from the new Holley Aluminum HP carburetor main bodies. These aluminum HP main body retrofit kits convert your existing carburetor to an aluminum HP main body for increased horsepower, torque, and airflow. With no air horn, choke tower, or choke control to restrict airflow, they deliver extra power easily and affordably. These aluminum main bodies are available in a shiny finish and come complete with all the parts necessary to take your carburetor to the next level! This retrofit main body kit converts the following applicable carburetors: 650 CFM - 0-4777 700 CFM - 0-4778 750 CFM - 0-4779, 0-76751

All Necessary Parts Are Included

Simple Installation With Common Hand Tools

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®

Eligible For Holley Contingency Programs