Holley Power Valve 125-135

The Holley Power Valve 125-135 is a high-flow, single-stage power valve designed to optimize fuel delivery across your engine's RPM range, ensuring crisp throttle response and consistent performance from idle through peak boost. If you're running a carbureted or forced induction setup, this valve prevents lean-out conditions under load while maintaining precise air-fuel ratios during cruise—a critical upgrade for any serious racing application or high-performance build.

With a 3.5-inch vacuum rating, this power valve delivers the responsive metering you need to extract maximum power without sacrificing reliability. Installation is straightforward, and the included gasket ensures a proper seal out of the box.

• High-flow design
• Single-stage operation
• 3.5 in vacuum rating
• CNC-precision engineered
• Includes gasket
• Bolt-on installation
• Sold individually