It's a Tracy motorsports widebody kit, and the wheels are 19X12 in the rear and 19X10 up front. I am putting down 500 at the wheel with a 150 shot of nitrous. Turbo Dave is the one that tuned it. Dave said the engine could handle more, but the supercharger couldn't handle putting out anymore. If I can sell the supercharger Dave talked about putting a turbo on it. He estimated well above 600 hp. ERL out of Indiana built the engine