Dynojet Stage 7 Thunderslide Jet Kit for Screaming Eagle 44mm CV Carb For Harley Features: Stage 7 Kits are for 80 plus horsepower engines and include a taller carb top for more slide movement Composite plastic slide provides unparalleled performance gains in horsepower and mileage Kit includes jets, needles, clips, carb top, slide, and other necessary parts for Twin Cam 88 models with Screamin' Eagle 44mm carbs Note: Tuned for Twin Cam 88 with Screamin Eagle 44mm carburetor.