Hi everyone, Im Fergy95 a new member. I got a 1990 gmc c1500 tbi with the 1227747 computer and im looking into tuning. The truck has a couple of mods but im looking into how to get the most out of them. Im lthinking of putting in a cam in the future also. I haves seen lots of forums on this site that include tunerpro and buring chips. Thanks