S&S Cycle Shorty Super Carburetor Kits 99-05 Twin Cam Larger 2-1/16" bore allows more air to flow for more peak horsepower Recommended for larger displacement engines over 100 cu. in. Accepts stock late model throttle cables on all Big Twin models Adaptor kits available to retain your factory cruise control Kits include everything needed for installation on your carbureted Twin Cam including the manifold and air cleaner