Riddle me this, Mopar electrical experts.......

I had a similar problem with my 64 Valiant, engine dying,or not starting at all, but my headlights weren't going on and off. The ignition module wasn't tightened down well to the bulkhead (the mounting hole was wallowed out). I used a bigger screw and tightened it down and the problem went away. I took this to mean that the ignition module needs to be grounded at the firewall.