Cool your jets! You don't have to get hot under the collar anymore when faced with jet changing. Holley makes it easy with a "quick change jet kit". Designed for the center-hung-style "race" fuel bowl, the kit will allow you to change jets without having to remove the fuel bowl. Simply unscrew the jet "plugs" which thread into the bowl and use the Holley jet tool to remove the old jet. Screw in the new jets, replace the plugs, and you're ready to ride. Holley quick change jet kits come complete, ready for installation. They include the quick change fuel bowls, gaskets, washers, seals, fuel bowl plugs and jet tool. Everything that you need for an easy conversion. "Quick Change" -- a new standard of convenience from Holley. Features Allows jet changes without removing the fuel bowl For carburetors with center hung fuel bowls Complete kits including: Fuel Bowl Gaskets PlugsJet removal tool included with primary bowls Available in standard and chrome finishes Provides quick and easy jet changes Unique removal tool firmly holds jetPit Stop USA offers Holley Quick Change Jet Kit - Model 4150 Carburetors Secondary Fuel Bowl w/ Single Inlet and No Accelerator Pump 34-27 at low everyday prices. Be sure to check out all of our products from Holley Performance Products including Holley Performance Products Fuel Bowls.