Holley Power Valve Plug & Gasket
- Blocks Power Valve Circuit
- Main jetting will need to be increased 6 to 8 sizes when plug is used.
- Fits Holley Model 2300, Model 4150, Model 4160, Model 4500
- One Plug and Gasket
- 1/2-28 Thread
Holley products have been the undisputed leader in fuel systems for over 100 years. Holley carburetors power every NASCAR Sprint Cup team and every NHRA Pro-Stock champion. Holley's products include performance fuel pumps, fuel injection, intake manifolds, cylinder heads & 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, Weiand, or Earl's, Holley products can give you the edge you need over the competition.