This Holley standard main jet is a metering orifice that controls fuel flow into the carburetor's metering system. Each jet is flow-tested and stamped with its jet number for accurate calibration when tuning air/fuel ratio.
Specifications:
- Jet Number: 67
- Jet Size: 0.0663 inch
- Thread: 1/4-32
- Material: Brass
- Product Type: Standard Main Jet
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 122-67
Fits Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500 carburetors. Not for use with carburetors originally designed for alcohol.
FAQ
What carburetor models is this jet compatible with?
Holley Model 2010, 2300, 4010, 4011, 4150, 4160, and 4500 carburetors.
What thread size does this jet use?
1/4-32 thread.
Can this jet be used in an alcohol-fuel carburetor?
No — this is a standard gasoline jet and isn't intended for carburetors originally designed for alcohol.
What is the jet size and number for this part?
Jet number 67, sized at 0.0663 inch.

