Just got off phone with M&H Electrical Fabricators 1972 Demon

Ihave also had excellent experiences with M&H. I have used their under hood harnesses a few times. A couple years ago I wanted to replace the dash harness in my standard dash 1970 Dart. They had a couple others needing the same thing and they produced that harness. When it came I compared it in detail with the original and it was right on target. I needed one more fuse holder since their source harness was for a 2 speed wiper (mine was a variable speed and an AC car) and they were happy to help me without Year one in the middle after I bought the harness.