all he said was that there wasnt any problems with any high acts but didnt say what it was exactly.i took it to well lane turbos he did a great job with it,hope to get the boost up to 14-15psi when i sort out the injector problem. does 170 sound about right for 10psi. also does anyone know the best place to get a stage 2 or 3 head and how much they are going to cost,cheers