Description
Proper jetting is the foundation of carburetor tuning—get it wrong, and you’re leaving horsepower on the table or running too rich and fouling plugs. The Holley 122-57 main jets deliver precise fuel metering for mid-range and cruise conditions, ensuring your engine runs clean and efficient across the power band. If you’re dialing in a Holley carb for street or strip duty, these brass jets are essential tuning components that make a measurable difference in drivability and performance.
- Holley main jets
- 0.056 inch ID
- Number 57 sizing
- Solid brass construction
- Sold as pair
- Carburetor tuning component
- Holley carb compatible
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