Tried searching and have been reading up on these turbos, both seem to though down some good numbers, my question is, what would be better a 71 74 to get into deep 10s skim the nines, however i would like to autocross this as well. Ive been reading on the 74 and it seems a bit laggy, but then agian i was considering a 50-80 shot on top of it. Any advise would be great thanks.