Hi Ron,
Having just been through this I can tell you that there are wires in the harness that loop back on themselves. I suspect you cut a ground wire mid loop. Check for a brown wire. When you find one, ohm it to ground with the battery disconnected and see if you get 0.
I know it's a tough job, but in the long run it's probably worth it to remove the entire set of wires, lay them out and carefully remove what you don't need and replace all the brittle stuff.
I love the way Joe wired his radiator fans and when I saw that the dash could be removed it became a no brainer. We sell the RacePak systems, so that will become my new dash with all the required switches right next door. Iâve seen too many relay, connector, and brittle wire coating problems to build around the old stuff that was in there.
I have an 83 with the entire harness sitting out. If you can be more specific about the wires that you cut, Iâll be happy to cut all of those section open to help you get running again.
Good luck!