This group is specifically for carbureted superchargers, turbochargers, and building your own small superchargers or belt drive turbos. This very diverse group also deals in new and sometimes experimental technology which often isn't tolerated elsewhere like the compressed air Terminator system. Its for any carbureted engines from single cylinder go-carts to 500+ cu.in. V-8s. No fuel injection discussions -- too costly and limited in boost potential. A large portion of our membership is from the old Total Performance Independents (AMC, K-W, Studebaker) with many years of experience with super/turbo engines. So if you're interested in these subjects, searches should produce a lot of specific info on them. Dick Datson, Moderator