I was wondering the same exact thing, All i want to do is make 300 rwhp in my car and just have it as a street car and not really a track car, would the powerdyne be fine for this setup or will it still be crap? The only other thing i would do down the road would be get a set of gt40 heads after the supercharger if i got it. sorry to possibly stealing the thread, but from reading i also heard they are crap for track cars and tend to break a lot and they dont produce as much psi as they say.