This Holley Standard Main Jet is a precision-flow-tested metering orifice that controls fuel flow into the carburetor's metering system. Jet shape, entry, exit, and size determine flow rate, and each jet is flow tested and stamped with its correct number for accurate tuning.
Specifications:
- Jet Number: 68
- Jet Size: 0.0685 in. (listed as .069 in.)
- Thread: 1/4-32
- Material: Brass
- Product Type: Standard Main Jet
- Fits: Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 122-68
Not for use with carburetors originally designed for alcohol.
FAQ
What carburetor models fit the 122-68 jet?
It fits Holley Model 2010, 2300, 4010, 4011, 4150, 4160, and 4500 carburetors.
What is the jet size and thread on this part?
A 0.0685 in. jet size (listed as .069 in.) on a 1/4-32 thread.
Can this jet be used in an alcohol carburetor?
No, it's not for use with carburetors originally designed for alcohol.
What material is the jet made from?
Brass.

