Actually just got the RGA today. They have an issue that seems to be isolated to Dodges.. I'm in touch with 3 or 4 other LA guys that are having the same battle. The Chevy , Ford guys don't seem to have the disease.. I purchased the "Top End Kit" which included the distributor. I could never get the timing to just dial in.. bounced all over the place constantly, swinging from +10 to -10 degrees in rapid succession. It's a self learn system and was never really able to learn. Put my stock dizzy in and it timed and ran beautifully. I mean spot on! With the Aces diz, it sounded like I had a pretty choppy cam.. and I don't. After 2 ECUs, 2 dizzy's and 4 firmware revisions aimed at this issue, I gave up. I gave it as much of a try as anyone could expect over the course of 2 months. It's one of the things that has pushed to go ahead and do the Hemi swap that I'm currently collecting parts for.