Thunderslide Jet Kit – Twin Cam

Unique set of lift holes moderate how the slide moves with respect to throttle position; the faster the slide opens, the quicker the throttle response; Revolutionary composite plastic slide provides unparalleled performance gains in both horsepower and mileage; Stage 7 kits are for 80 plus horsepower engines and include a taller carburetor top for more slide movement; Include jets, needles, clips, carburetor top and other necessary parts for CV carbs; Made in the USA