Holley Jet Assortment Kit 36-181 — Sizes 64–99 (2 ea) in Reusable Case for Carb Tuning

Holley 36-181 Jet Assortment Kit is a comprehensive set of precision-cut jets in sizes 64–99, organized in a reusable plastic case for quick carburetor tuning and swaps.

Whether you rebuild vintage carburetors or fine-tune modern performance builds, the Holley 36-181 Jet Assortment Kit supplies a broad range of jet sizes and convenient storage so you can test, change, and store jets on the bench or at the track. Designed to fit multiple Holley carburetor models, this kit saves trips to the parts counter and speeds up calibration when dialing in air/fuel mixtures.

Which carburetors will these jets fit?

These jets are made to match the thread and flow specifications used across several Holley applications, so they work with many popular model families. Confirm thread size and jet type against your carburetor’s manual before installing. The kit is especially useful when servicing or upgrading common Holley models.

• Compatible with Holley models: 2010, 2300, 4010, 4011, 4150, 4160, 4500
• Includes jet sizes from 64 through 99 for fine stepping
• Standard Holley jet profile for direct replacement
• Useful for both mechanical and vacuum secondary carb designs

How does the kit speed up tuning at the shop or track?

Having a complete range of jets on hand eliminates downtime when a change of one or two sizes is needed to reach the ideal mixture. The clear, compartmented plastic case keeps sizes separated and easy to identify, so you can swap jets quickly without losing parts. This practical organization reduces mistakes and streamlines test-and-adjust cycles.

• Two of each jet size gives immediate backup and parity between bowls
• Separated compartments prevent cross-contamination and loss
• Compact case fits in toolbox or pit bag for mobile tuning
• Quick visual selection speeds up jet swaps during dyno runs

What are the kit’s contents and build quality?

The Holley 36-181 contains 2 pieces each of jet sizes 64 through 99, produced to Holley’s manufacturing tolerances for consistent fuel flow and fit. Jets are made from durable brass or similar alloy to resist corrosion and wear from repeated installation. The plastic case is molded to keep jets organized and accessible while protecting them from damage.

• Range: jet sizes 64–99, two of each size
• Durable metal jets manufactured to Holley spec tolerances
• Plastic storage case with individual slots for each jet pair
• Clear lid for quick inventory checks without opening

Will this kit help me with performance or daily-driver tuning?

Yes — the assortment is helpful for both performance builds and routine maintenance. Performance tuners gain precise control over fuel delivery in varying conditions, while street mechanics benefit from the ability to restore correct jetting after service or part swaps. It’s not a standalone tuning solution, but a practical tool for achieving desired air/fuel balance.

• Ideal for dyno tuning, track adjustments, and shop rebuilds
• Supports incremental jet changes to refine mixture across RPM range
• Useful when converting fuel types or changing intake/exhaust hardware
• Handy spare set for emergency repairs on the road

Who is this for: The Holley 36-181 Jet Assortment Kit is aimed at mechanics, engine builders, restorers, and performance enthusiasts who work with Holley carburetors. If you routinely tune carbureted engines, rebuild carburetors, or need a reliable parts kit for trackside adjustments, this assortment provides the range and organization needed to make precise, repeatable jetting changes without extra trips to the parts store.