what can this car handle and what is practical?
Boo. I hope I can go FI with this motor so I can blow away v6's at least by a small margin!Bottom line - Cams and turbos for this motor is not practical - simply because you can drop a V6 for the dame price with less the headaches of FI
Not to stray from the OP's inquiry;
Throw in a CAI, highfow exhaust system, performance tune-up, lower it PROPERLY (forget about adjustable coilovers or cutting springs) and upper and lower braces.
Rule number 1 - Do it right the FIRST time. This hobby is expensive as it is - theres no point going the cheap route "for now" just to spend more money to do it "the right way" later.