Electronic ignition issue

You can get some idea of chain/ sprocket condition by watching the rotor as you turn the crank back and forth against chain slack. About 10* movement is all I'd give it on the outside, should be less.

If that test shows suspect, pull the alternator and fuel pump and get in there with a light and mirror, and feel around the chain with your finger. To get the slack on the pump side, you need to rotate the crank normal rotation until "you get the slack out."

If that doesn't show anything, and you still suspect the dist. I would NOT be afraid to yank the dist. out. Mopars are specially easy since they only go in two ways. So just note where the rotor points and either "remember" or write it down.

Then you can take a good hard look at the dist.

You REALLY need to get a light. Check your local Craigslist, thrift stores, or garage sales. I've bought two that work great for 5 bucks apiece. I do NOT trust "dial up" (delay or readout) lights.