Get the stage 2 kit. The kit comes with everything you need. It's a bolt on kit, load tune, datalog, Randy will dial your tune in, and you're good to go.
The FSW kit and the tuning is geared toward people using a stock engine.
FSWerks stg2 w/ water/meth; Cossie intake.
Massive Speed stg 2 cams in the works....