Holley Main Jet Assortment Kit 72 Brass Carburetor Jets Size 64 To 99 For Holley 2010 2300 4010 4011 4150 4160 4500 Carburetors Replacement Tuning Kit

Brass main jet kit for Holley carburetors, 72 jets total
✔️ Two sets, sizes #64-#99, 1/4-32 threads, 72 jets total

The Holley main jet kit provides brass jets for precise fuel metering across common Holley carburetor models like 2010, 2300, 4010, 4011, 4150, 4160, and 4500. It's ideal for tuning, cleaning, or performance upgrades in garages, shops, or trackside sessions.

✅ Brass main jets, sizes #64-#99, 1/4-32 threads for precise metering.
✅ 72 pieces total across two sets, ready for quick changes.
✅ Organized in a labeled storage box for fast access during tuning.
✅ Compatible with Holley 2010, 2300, 4010, 4011, 4150, 4160, 4500 carburetors.

💡 What is a brass main jet kit used for in Holley carburetors and how does it help tuning?

It's handy for dialing in air-fuel balance and maximizing performance across engines and fuel conditions.

- Helps dial in idle, part-throttle, and WOT fuel curves on Holley carbs - Supports precise metering with sizes #64-#99 brass jets using 1/4-32 threads - Keeps spare jets organized in a labeled storage box for quick changes