340 Not firing on all cylinders

Not tryin' to make fun of the OP, not at all, but this is a good example of how you can't expect 40 year old wiring to run and run and .....................run...............and............run....................

Its amazing what happens to some of these cars over the 40+ years of life.. you should of seen the rats nest that was made out of my underhood wiring harness that I had to go through and fix right (I wont even get started about the under dash harness) ... Sometimes I believe people dont realize the potential for car fires... lol (to be clear, I am not referring to the OP here.. just some people in general)