Hmmm...I think everybody is kinda not getting the question. I've built a 305 and a 350 in the past year. Both were carburated without any kind of computer. Now I think I have most of the mechanical theory and practice down (although I'm no expert), I'm interested in getting into the computer controlled high performance aftermarket systems. I certainly appreciate the responses but I know I can get a chip burned or go with an EMS 3rd party stand alone system. I'm simply looking for anyone's stories on specifically installing an EMS and their decision process with going with it or deciding against it. Systems like TEC3 or Motec or Haltec and SDS. Again my 3rd gen F body is just an example. I find these systems interesting and want to hear about them in your hot rod, late model, boat, plane or whatever. By the way I have a few laptops and like programming although these systems are more fill in the blanks than programming.