USA Speed Pair #67 Main Jets, 1/4-32 Thread, Brass, Fits Holley 4150 4160 4500

Tuning your Holley carburetor?

You're going to need the right jets.

This is a pair of #67 main jets from USA Speed.

They're made from solid brass and have the standard 1/4-32 thread that fits most Holley 4-barrel carbs, including the popular 4150, 4160, and 4500 series.

If you're swapping jets to dial in your air/fuel mixture, these are the ones.

They're made in the USA and cross-reference to part numbers 122-67 and 22-67.

They come with a manufacturer's warranty.

Grab a couple of pairs in different sizes to have on hand for tuning sessions.