This group is for people interested in modifying the older GM ECMs that use a computer controlled carburetor. We are interested in all of these ECMs from the 80s applications of this technology, especially the latest of the variants, the 1228330. If you are looking for ways to increase the performance of your now classic 80s carb'ed GM car, this is the place to join.

When joining, you must tell us something about your project or interest in this list. The reason for this is that there have been spammers lately and I have the join function set to "need approval". Once I see that you have a genuine interest in the list and not just to spam us to death, I will approve.

Welcome!