How about we ask a moderator to combine your threads. @toolmanmike can you add this to the previous?
We can see from your photos a serious amount of jerry rigged wiring.
One possible issue is the '74 interlock that was mentioned.
But there is a lot more going on that will need to be addressed ergardless of whether the interlock is working.
What is your goal with this car?
Do you want to restore it? Just make drivable?
