Sorry, just had to throw in .02 here. Wouldn't this be alot easier to get a 12 year old computer wiz to hack into GM and download all this info, or maybe hire mercenaries to raid the engineering offices? Randy Braun '77 C-10 pick-up, DFI-Tuned Port, 350 '82 Firebird, DFI, ZZ3 '91 GTA, Stock