Hi there, I've got a 304 AMC and have done the TBI upgrade using GM 305 v8 tbi parts including 7747 ecm. It has a DUI ignition with an 8 pin module wired in per the instructions on this site. I've read thru all the FAQs and instructions haven't been able to find my issue covered. The problem is it starts and runs fine but when you punch the throttle it will retard the timing instead of advancing it. I've double checked all the wiring and checked all wires for continuity. I've changed the 8 pin module, ecm, esc module, knock sensor and the problem persists. I'm running out of ideas, anyone ever experienced this and have any suggestions?