Holley Standard Flow Single-Stage Power Valve - 8.5 in. Hg
Holley replacement power valves are an important component in the power enrichment circuit of Holley’s performance carburetors. They operate by using engine vacuum to control their opening and closing rate.
Key Features:
- Single-Stage Design: Standard flow configuration for consistent fuel delivery
- Opening Vacuum: 8.5 in. Hg for precise timing
- Includes Gasket: Complete installation package
- OEM Quality: Genuine Holley replacement part
Performance Benefits:
When the power valve opens, additional fuel is supplied to the main system during heavy load or under full power situations to eliminate hesitation and bogging—ensuring the smooth delivery of power without any drivability concerns. The valve is available in many different vacuum ranges to time the system’s operation to your specific requirements.
Emissions Compliance:
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.