Holley Power Valve Plug - Fits Models 2300, 4150, 4160, 4500 DX2150K 750 in Rectangular Port

750 in Rectangular Port

043 - 10 Per Package

Has provision for adding the PCV or breather flange at rear

It features multi-adjustable straps for radio headsets and an adjustable visor system has a tinted band to help keep the sun out your eyes to make pit stops even faster

Holley Power Valve Plug - Fits Models 2300, 4150, 4160, 4500 DX2150K 750 in Rectangular PortMain jetting will need to be increased 6 to 8 sizes when plug is used. Features: Fits Models 2300, 4150, 4160, 4500 One Plug and Gasket 1 2 28 ThreadHolley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS