Our “standard” valve is unquestionably the best of its kind on the market. Key features include a large outlet port, CGA #660 outlet threads, an O-ring seal, and large internal ports. This valve can support systems to 400+ HP. The newest versions of the NOS Hi-Flo™ valve are identified by the 45° handwheel, while earlier models had handwheels 90° to the valve. Available for 5 lb. to 20 lb. bottles.
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Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.