Hi Larry:
My experience may be different than others in that I am not using the GM Performance Engine Management System. I am also not using the steering wheel switching that comes with the GM steering column. I am using the Holley Dominator EFI system for engine management and using the Summit Raptor Pro wireless steering wheel switches. As a result, I was having to significantly modify the Infinity System. I was almost done wiring it, but I did not like the looks of it because the harness had some excess wire that I was having to loop and tuck away. Someone with more experience could cut and splice to make it look better. I am not finding fault with the Infinity System. It was really well made and a quality piece. I just wanted a system that I could understand when it was done, so that if there was a problem, I could fix it and I wanted it to end up looking great. I am not familiar with American Wiring. I just spoke with a lot of car builders on the Hot Rod Power Tour, and they all spoke highly of Ron Francis Wiring. Also, Ron McCall, on this forum, had me turn to them for my dual fan control module, and it went in great. I am a novice, and the Ron Francis system is going in great, and I understand exactly what I am doing.