Finally ready to supercharge my 99 silver ann ed.gt vert w/ 15k on it.My only mods are mac prochamber,mac cat back,frpp 410, tokico lowering kit,18's.Car is a 5spd and would prefer a centrifical kit.I've herd of a vortech moongoose kit and steeda kit w/steeda tuned ecm.Do not want to blow my stock motor,want approx 380 to rear wheels.Is this possible ,or am i dreaming.WHICH IS THE BETTER KIT.Have never driven/or been in a s/c car.What can i expect.Thanks all.