Holley Main Body Retrofit Kit Aluminum 650 CFM

This Holley 650 CFM Main Body Retrofit Kit (134-301SA) increases horsepower, torque, and airflow on a variety of applications, upgrading a wide range of vehicles from a street carb to a high-performance race carb. It converts Double Pumpers to a 650 CFM HP Series main body, eliminating the use of an air horn, a choke tower, and choke control, delivering extra power. It is pre-calibrated for the best drivability, and it's factory-assembled with all required parts. It is made from aluminum with a shiny finish and will be installed with only basic hand tools!

Features and Benefits:
- Converts 650, 750, or 850 cfm doubler pump to aluminum HP main body
- Upgrades street carburetor to a high-performance race carb
- Increases horsepower, torque, and airflow
- Free from air horn, choke tower, and choke control
- Reduces turbulence of air entering the venturi
- Pre-calibrated for optimal performance/drivability on various applications
- Factory-assembled with all required parts
- Installs with simple hand tools
- Aluminum main bodies with shiny finish
- Made in the USA

*New main jets are included, however, further tuning may be necessary depending on the application.