Re-routed pink wire tonight right off fuse box and still have inconsistent idle. I used half a can of carb cleaner tonight and pinched off the 2 vacuum lines independently and saw no measurable change. Hard to get to the 2F manifold adapter so last step is to take it apart and check the adapter plate for leaks/torque. Appreciate all the advice. After that I’m calling Holley…argh!I agree with vac leak. When mine was missing the map sensor plug I was getting a huge vacuum leak and the system was trying to compensate by over fueling at idle (what yours looks like in video).
When looking for a source for your switched 12v (pink wire), you want something that has no other draw or a constant draw. Tapping into the distributor power source should work because when running, it will see a constant voltage. But, tapping something like radio or turn signals can create issues because those are selectable circuits. Meaning, the sniper will be fine but once you turn your blinker on it starts seeing momentary voltage drops and spikes. I’m not thinking that being tapped into the voltage regulator is necessarily causing you issues, but I’d look for a “cleaner” tap.