On my way home from Mason Dixon Mopar show, I got a few "misses" at about 80mph in my 68 D100. I m running an Orange Box and one of those electronic voltage regulators that are black to look similar to originals in cars.
When this happened the Amp gauge jumped around for a minute. I don't think that I was anywhere near 5000rpm which is where i think the orange boxes are limited.
Could this have been the box? regualtor? alternator? I am not an expert with elecronics.
Thanks!