What your trying to do and your last comment make it almost im possible. Your going to need cam, better heads, exhaust and the inserts for the intake. I currently drive a 02 gt and Im seriously thinking of doing a cam, a metal intake off the newer 3800s and maybe nitrous. Itd be different make a very trouble free DD and power will be their when needed. I drive 90 miles to work every day and reliability comes 1st. Cheap, Fast, Reliable you can only have 2.