I'm gonna give you some advice, and i'm not trying to discourage you or be a hard a$$. But, what you are talking about here is a major upgrade. If you get the 600hp & 550tq your talking about, two things can happen.......
#1) With slicks and decent bite, without a good clutch assy, a blowproof bellhousing, a stout driveshaft, a upgraded rear end and a good suspension.......at the track, you will tear something up.
#2) If you've never been behind that kind of power before, on the street, you risk tearing you up, or worse, someone else.
What i'm trying to say is, that is a serious piece of equipment, and while it's easy for some to throw big numbers around, i just want you to be safe with however your build comes out.