Just bought an 09 sport 2 seat 750 last weekend. I was told it has bigger injectors (didn't know the size) bigger racing cam (didn't know size on it either) msd fuel ignition box, muzzy dual muzzy exhaust, found out through my own it has an aftermarket air intake box and filter, diamond dome pistons, and it only runs on 93 octane. Also he said it has 12/1 compression. Does anyone know or have an educated guess how this would compare to stock?