Replacement Holley EFI, Bosch Wide band Oxygen sensor. This sensor is a direct replacement for Holley HP, Dominator, Avenger and Terminator EFI systems. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley...

Replacement Holley EFI NTK Wide band Oxygen sensor. This sensor is a direct replacement for Holley HP, Dominator, Avenger and Terminator EFI systems. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley EFI...

Coolant Temperature Sensor for Holley EFI and commander 950 systems  

Gold Needle & Seat adjusting nut & lock screw Gold adjusting nut and gasket Gold lock screw and gasket

Power Valve Plug & Gasket Fits Holley Model 2300™, Model 4150™, Model 4160™, Model 4500™ One Plug and Gasket 1/2-28 Thread

Calibrating the right air/fuel mixture is important to gain proper power and efficiency from your carburetor and engine. But for vehicles running E85 fuel, proper calibration is difficult if you don't know the exact percentage of ethanol-to-gasoline in...

Fuel Bowl Sight Plug & Gasket Kit Standard Replacment Two Gaskets Fits All Holley Carburetors Two Brass Sight Plugs

Fitting Gasket 7/8" Nylon 2 Per Package

Accelerator Pump Cam Assortment Kit Each Cam Is Different Shape/Profile Gives Different Results Tailor Accelerator Pump Performance

Accelerator Pump Cam Assortment Kit Each Cam Is Different Shape/Profile Gives Different Results Tailor Accelerator Pump Performance

30cc accelerator pump diaphragm (black) Rubber w/o Screws Genuine Holley Quality Parts

30cc GFLT accelerator pump diaphragm w/o Screws. GFLT Diaphragms Are Compatible For Use w/All Alcohol Based Fuels Genuine Holley Quality Parts