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The Edelbrock single‑stage 3.5 in Hg power valve is a vacuum‑operated replacement that opens under heavier load to enrich the main fuel circuit and reduce hesitation or bogging. Its 3.5 in Hg rating provides a mid‑range opening point for carburetor tuning. Install the valve to match your carb and engine vacuum behavior to help maintain smooth power delivery under load.
Edelbrock Single-Stage Power Valve Standard Flow 3 5 In Hg
