Specification
Description
The Holley Single-Stage Power Valve is a crucial component in the power enrichment circuit of Holley's performance carburetors. It operates by using engine vacuum to control its opening and closing rate. When the engine vacuum drops to 10.5 in. Hg or below, the power valve opens, supplying additional fuel to the main system during heavy load or full power situations. This ensures smooth power delivery without hesitation or bogging, enhancing overall engine performance. The valve includes a gasket for easy installation and is designed for standard flow applications.
Disclaimer
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.