Holley Main Jets (2) 122-63
Part Number: HLY122-63HOLLEY
- SKU:
- HLY122-63
- UPC:
- 090127021569
- MPN:
- 122-63
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
Prop 65 Warning
Prop 65 Warning
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Description
Main jet sizing is critical to proper carburetor tuning—too rich and you'll foul plugs and waste fuel, too lean and you risk engine damage. These Holley main jets deliver precise fuel metering at cruise and mid-range throttle positions, ensuring your carburetor performs consistently across the RPM band. Whether you're fine-tuning a street engine or dialing in a race car, having the correct jet size is non-negotiable for reliability and performance.
- Holley carburetor jets
- Size 63 (0.062" ID)
- Brass construction
- Pair included
- Bolt-on installation
- OEM Holley specification
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