right now a 5.3 with a cold air intake, tbss intake, 92 mm throttle body, 36# injectors, and longtubes. my current cam is a comp .554 .558, 208 212, 115 i called comp and told them that i wanted to make more tourqe and horse numbers they said cam with .566 .568, 222-224 112. is this cam much bigger cuz i want to go alot bigger than what i have now. with the new cam i want to get the stock heads ported to match the cam what can the stock heads handle.