i have used FAST alot . FAST is user friendly . easy to tune and easy to setup . BIG STUFF 3 is real hard to work with and tune . the fast we used it on a 555 ci bigblock and a 454 zl1 motor and other cars all of them fired right up and ran no problems . the BS3 we have it on a twin turbo 4.3 and wow we still dont have it running right !

hilborn sucks ! stay away from them . i have a 8 stack EFI and i have taken the controller and trashed it and installed fast on it .