Review on Enhance Performance with the Holley 121-7 Silver Accelerator Pump Discharge Nozzle by Tim Wilske
Correct Screw for Jet .40 and Larger
The description is a little wrong, but if you are using a jet larger than .40 or larger, use this screw instead of a fixed one.
Pros
- Accelerator Pumps
Cons
- I'm Concerned
