Description
Main jet sizing is critical to proper carburetor tuning—get it wrong and you’ll suffer from lean stumbles, hesitation, or excessive fuel consumption. The Holley 122-89 main jets deliver precise fuel metering at cruise and part-throttle conditions, ensuring your engine runs cleanly across the entire RPM range. These OEM-quality brass jets are essential for anyone dialing in a Holley carburetor for street or strip duty.
- 0.105 in ID
- Number 89 size
- Brass construction
- Holley carburetors
- Pair (2 jets)
- Bolt-in replacement
