Edelbrock Single-Stage Power Valve Standard Flow 4 5 In Hg

If you're working on a performance carburetor like a Holley, Demon, or Quick Fuel, this Edelbrock Single-Stage Power Valve is a key component to keep your engine running smoothly. It's designed to manage fuel delivery based on engine vacuum. When you're under heavy load or accelerating hard, this valve opens up to provide extra fuel to the main circuits. This helps prevent hesitation or bogging, ensuring a consistent flow of power and a better driving experience.

This particular valve is a standard flow type with a 4.5 inches of mercury (in. Hg) rating. The 'in. Hg' rating tells you how much vacuum is needed to open the valve. A lower number, like 4.5 in. Hg, means it opens with less vacuum, which is typical for many performance applications. It features a 1/2in.-28 thread size, making it compatible with a wide range of carburetors. Edelbrock makes these to help you keep your carburetor in top running order.