I'm not looking to modify much, guess I'm hoping for a "spec" style class or a class that somewhat fairly groups cars so everyone has a chance. Apparently NASA has a PT class that takes not only power to weight into consideration, but also add or subtract points for any and everything such as tires used (points based on type and rating of tire), brakes used etc. Your classed after all points against the car are tallied. Sounds interesting but possibly cumbersome. May just keep it simple and set up as an SCCA ITR car and go race with the S and A crowd. I have friends in each and should be able to find someone to chase