If you want to spend the money, the best header for making power in N/A form would be a Hytec header.

Since the car is a '95, it's OBD1. Have it chipped and tuned. My friend is a tuner for eCtune (happens to be one of three authorized tuners in Florida), and he says I'll pick up at least 25whp from a full dyno tune. I was there when he tuned a little single cam and it yielded a full 23whp gain from a full dyno tune.

As for cams, go with CTR cams, or the Skunk2 Pro-1 (not stage 1) cams. For the intake, if you have the cash, ditch the shitty GSR manifold, and go with a Skunk2, and get a Comptech Icebox or modify your stock intake.

If you go on Team-Integra.net, there's a LOT of useful and very helpful info there.