Adjustable Air Bleed Jet Packs

When installing a ThunderJet™ in any S&S carb, we recommend modifying the fixed-size main jet air bleed circuit to accept jets for additional tuning versatility. Instructions on how to perform this effective modification externally on the carb body for easy access are included with this kit. Air bleed jet kit includes 4 jet sizes for most popular applications.

Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.

**Please note, this item is low in weight and our shipping calculator with UPS has minimums which can create high cost shipping on low weight items. Please email Zipper’s, using the form below, so we may explore other carrier options with lower cost than UPS. If you do process the order through our website, we may be in contact with you for other shipping options.