With the exception of an EVO, you might as well get get Shitsubishi out of your head right now. Hell they've been working with the 4g63 since 1989, and only recently has the engine become reliable. It used to eat bearings for lunch, then take your crank for an evening walk in the park.
The 3000 GT is a heavy, unreliable, overpriced HOG!
If you want a fast car, either buy a cheap DD and go to town on your Integra, or pick something worth the money your going to spend.