Carburetors + Accessories

These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are...

These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are...

These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are...

These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are...

Center Hung Float Brass Float Kit.  Use of brass floats on the secondary side of Model 4160™ carburetors factory equipped with nitrophyl secondary floats such as part number 0-3310C for Example, may cause the float to contact the metering...

Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability...

Transmission Kickdown Stud

Fits Holley Model 2300™, Model 4150™, Model 4160™, Model 4500™

Fits Holley Model 4150™ Fuel Bowl and Metering Block

Throttle Ball Assortment Pack

Fuel Bowl Sight Plug & Gasket Kit

Allows changing the rate of the secondary operating ranges

This is the hardware kit needed when installing a Holley universal carburetor with two mounting holes to a Ford with Automatic Transmission.

9.5 Power Valve Assembly - Hi-flow FOUR DOOR exclusive QFT design - Comes with replacement gasket, sold individually. This is the correct power valve for engines with 19 to 20 inches of vacuum at warm idle.

8.5 Power Valve Assembly - Hi-flow FOUR DOOR exclusive QFT design - Comes with replacement gasket, sold individually. This is the correct power valve for engines with 17 to 18 inches of vacuum at warm idle.