Just got back to the hotel from being at mustang dyno and I brought this thread up to the same salesman that sold dyno, inc. their dyno.. he said the numbers for the gto should not have been that off.. One thing he said to check was the parasitic file..

Just out of curiosity, when you all bought your dyno, did you also buy the training from them?

Other than that, we are now proud owners of a mustang dyno..