I have a 96 GT and have some PI heads and cams and intake. Would I see any power by putting some comp cams in or should I just keep the PI cams cause I am not going to port the heads? I am also goin to put some shorty headers in while I have the heads off. I don't want longtubes. What kind of power will I be seeing on the dyno? With and without cams? and with and without ported heads? So what do you guys think I should do? Thanks.