Ignition nightmares

My distributor is circa 1973. It might have close to 300,000 miles on it. In 2004 the car it's in went 93 in the Eighth, the tach on 7000 all the way, and idles at 550 rpm when I need it to. I have absolutely no idea what a bad electronic distributor might look like. The pick-ups are another story, but mine is ancient as well.
If you want a trouble free lifetime coil, I can heartily recommend the big yellow Accell square top with matching ballast; I bought it from the Mopar catalog. Mine has over 125,000 miles on her.I mounted it on the apron with a 3ft coil wire, part of my anti-theft program.