Description
Precise fuel metering is the foundation of carburetor performance, and the right main jet size directly controls your engine’s power delivery and fuel economy across the RPM range. These Holley main jets allow you to dial in the exact air-fuel ratio your engine demands, whether you’re tuning for street driving or race conditions. A quality jet change is one of the most effective—and cost-efficient—carburetor adjustments you can make.
The Holley 122-49 main jets are manufactured from brass for durability and feature a 0.048-inch inner diameter that meters fuel precisely through your Holley carburetor. This pair gives you the flexibility to experiment with jetting or replace worn originals without downtime.
- Carburetor jet
- Size #49
- 0.048 in ID
- Brass construction
- Fits Holley carburetors
- Quantity: pair (2)
- Bolt-on installation
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