- Kit provides infinite adjustment of secondary throttle blades for maximum horsepower output
- Stainless steel construction for longevity, durability and control
- Detailed instructions for easy installation', "Compact design won't interfere with throttle linkage", 'Includes all necessary hardware for proper installation
The Holley Pro Series secondary linkage provides a bulletproof method of adjusting secondaries on all double pumper, HP, and ultra HP carburetors. It allows user to pick between 1:1 or progressive secondary ratio.