Isn't the AG and RPM the same intake. I thought the only diff. were the runners and plenlum being elevated for the air to flow thru. I thought it went performer, rpm performer, AG rpm performer, torkerII, victor, super victor. I'm most def. not using the regular rpm. That is like a step up from stock, how would that work with extensively re-worked heads, major cam upgrade and, quite a bit more comp. then stock.