If you run a 2v with stock internals at over 400rwhp you're just asking for trouble. Which would you rather have a well built car that lasts 20 years or a fast car that blows up in a year. . . and then you end up having to do internals anyways when you DONT have any money left over from doing the supercharger. I know that my car at 340 rwhp may not be as fast as some dude with stock internals and blower with 380 rwhp but mine sounds a hell of a lot cooler and runs a lot stronger and will run strong ten years from now.