Need Help With Wiring.

I have no idea what you have, There was no lean burn in 74, so unless you have some part of some harness or distributor out of an actual lean burn car I don't know

Ditch the Haynes/ Chilton stuff. Go to MyMopar and download the 71 factory service manual from there and then go to the wiring section and get the aftermarket 2 page wiring diagram. They are not really complete, and don't show all options and connectors, but they are somewhat easier to follow than factory ones "some times"

If you have ALL the factory electronic components, including the distributor, it can be easily connected. Most folks around here advise against using Mopar electronic simply because modern (current) replacement parts are such poor IE Chinese/ import/ 3rd world quality

DO you have a what was working ignition system for your engine, that is distributor and whatever else at this time? If so I would CONSIDER tossing that in there at least temporarily before you get into complications.