Main Jet Kit For One Quarter Inch By Thirty Two Carbs With Brass CNC Machined Jets Sizes 50 Through 59 Two Pieces Each Total 20 Jets Great For Holley Style Carburetors And Precision Tuning

Holley 1/4-32 Brass Main Jet Kit for 50-59
✔️ Brass CNC-machined jets, 20 pcs total, 1/4-32 UNF, sizes 50-59

This main jet kit fits Holley-style carburetors with 1/4-32 UNF threads and brass CNC-machined jets. It provides 20 jets total, two for each size from 50 to 59, enabling precise tuning for performance engines and varied fuel conditions.

✅ Sizes 50-59, 2 pcs each, total 20 jets
✅ Thread size: 1/4"-32 UNF
✅ Brass CNC-machined jets for precise fuel metering
✅ Fits Holley-style carburetors for tuning
✅ Durable construction for reliable performance

💡 What is a main jet kit for Holley carbs and how does it aid precision tuning?

In general, this kit lets you swap jets to dial in fuel flow for different engines and conditions.

- Handy way to fine-tune air-fuel mixture across RPMs
- Improves throttle response and engine power delivery
- Adapts to different fuels, elevations, and engine setups