1974 Plymouth Duster Electrical Problems when hot

I never want to just "throw" new parts at an old car of mine that has a problem, because many ore sometimes the "new" parts are bad or go South quickly. I always want to diagnose the problem. But...... IF you want a dependable old car to enjoy, realize until or unless you replace old and wore out or just inadequate parts, you will be one the the RoadKill type guys! Maybe why I carry a box of spare parts and tools when I leave the house in that 60 year old car!

Remember, old and bad wiring can set any old car on fire. ie.... Fire extenguisher!!!