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[Lou]

  Hello.   Dose anyone out there have a copy of a performance improving ROM
for an 88 GMC jimmy? The car has the 4.3 V6 and an aod tranny. Is three
anywhere I can look on the web to find a disassembly of the ROM for my
particular setup? Is it a common setup ? Did GM build many different ECM's
for their whole fleet of cars, or are three just a few ECM modules, but each
has a different ROM in it? Sorry of all of the silly questions, but I am
still new to this group.

   Thanks for your time.

     Lou