Ty, port your stock heads and go with the biggest cam you can find. i recomend the "Magic Stick" from Texas speed this is whats in my car. when modding make sure you do the little things aswell, 160 thermostat, NGKs, wires, Ported TB, TB bybass. For some reason alot of guys miss these. Also makesure you get a good tunner, i recommend Zo6 Eric.
i believe the ls2 heads are 02+ ls6 heads