I'm redoing the turbo system and just got an HO manifold, what size of throttle body should I get for it? I was thinking a 62mm RSM racing one. Would this work out well or should I go smaller? I have an extra stock one lying around that I could get honed, is this as proficient and if so, what size should it be honed to? Which throttle bodies fit the HO manifold? The one I was looking at is for a 2.2 ecotec, not sure if it will fit. Sorry for all the questions, just wanted some other opinions. Thanks for the help.