Description
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
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