As far as I can tell, everyone is using 25 year old controllers to run their TBI setups. For one thing, these boxes are old and who knows how reliable. For another, you probably have 10000x computing horsepower in your phone than in these gigantic boxes. It seems to me that someone should make an updated box to plug into the existing harness. If they do, I can't find it. Anyone know? Holley makes similar stuff, but they seem to be always pushing their own throttle body, harness and sensor packages. I'm sick of fighting this ancient tech. DynamicEFI looks like a good improvement on the software side, but they still use old hardware (and cost $500). I just noticed they don't support 7747 either.