Please help!! 1971 340 duster having major ignition wiring headaches.

So are you saying that my wire from the +coil side should be spliced into my brown wire which is on the opposite side of my ballast? To be clear I ran (spliced in) a single wire from my +coil side to the blue wire that runs from the (N) plug of the bulkhead disconnect( labeled ignition 1 in my wiring diagram)it plugs into the ballast and was there already with the stock wiring. If I’m not supposed to splice it in with that wire and just run it to the ballast directly and leave off the blue ignition 1 wire, where would that plug in then?

Also I got this car with a slant six, so we pulled the engine and tranny(plus everything else ) except the original wiring. It had no ballast, coil or ICM when I got it. Just engine, tranny and loose wires.
I really appreciate the help guys, thanks
I cannot see what you have so difficult to answer. But I DID say earlier that the coil/ ballast wiring is THE SAME for either points or a 4 pin ECU box. You should not have had to change ANYTHING on the factory wiring to the ballast, from the old points system

The run wire should already have been wired to the ballast.
The coil side of the ballast should already have the brown bypass/ IGN2 wired in.

If you connect the original coil + wire to the coil +, and run a new wire over to to the ECU from the coil NEG, ground the box, connect the two wire distributor connector, and then run the box power wire and splice that into the key side of the ballast (see the diagram I posted) that is all you need. To determine for sure which is key side of ballast and which is the coil side, simply unplug either connector at the ballast, turn the key to run, and then probe the two wires and see which one is "hot." That one is the feed from the key

In the diagram I posted, the (incorrectly) labled start wire and the "Run" wire should already be in place, if no one has chopped things up Again, all you need to add to that diagram is the power wire to the box, from the "RUN" connection at the bottom of the ballast