well i guess the question is i wanna run a zex kit at like 45-55 shots max and my motor has 106k miles and i got a walbro pump and a aem reg.. and rail... and the kit is "dry"... i wanna kno is this worth tuning?and wat would be a good way to do it??and is it possible to tune some wat off a AFC-II? and i wanna kno would 2 step in colder pluggs and premium fuel at all times be good for few weekend races?any help PLEASE??thanks