Mako, Thank you very much for replying and summing up this topic for me! Hope this will help others on the topic. Your knowledge and insight is greatly appreciated!
Greetings, just a quick question about ICM for 1995 454 xli TBI. Are Marina parts stores just using a regular ICM for automobiles? I have read that marine use ICM may have been programmed different then auto and mixed feeling from the internet about this. I did buy a GM branded one from auto...