Collection: Auto - Power Valve

Fine-tune your air-fuel mixture and prevent engine bogging with our selection of Auto Power Valve components. At DIY Customs, we provide high-precision replacement power valves, specialized high-flow enrichment jets, durable carburetor gaskets, and heavy-duty blow-out protection kits designed for a perfect fit in Holley, Edelbrock, and Rochester performance carburetors. Whether you are tuning for a high-vacuum street engine, outfitting a race-spec carb for maximum fuel delivery under load, or replacing a ruptured valve after a backfire, our professional-grade hardware offers the vacuum-sensing accuracy and fuel stability you need at unbeatable prices. From specialized standard and high-flow valves to direct-fit tuning assortments for popular domestic and import muscle cars, we carry the essential gear for every fuel system calibration. Don't see the specific vacuum opening point (2.5 to 10.5 Hg), flow rating, or specialized gasket for your carb model? Hit the live chat or call 412-882-8346—we can special order and drop-ship exactly what you are looking for directly to your doorstep!