Bought a Mopar found some odd issues.

You have checked timing. IS the vaccum pod connected when it's being run? On mopars, this vaccum can can be adjusted to preload the spring. You take a small allen wrench, straight up the hose nipple. Sounds like the vaccum advance needs a couple turns counterclockwise. That will raise the vaccum required to operate the advance. It should eliminate the popping. The pickup will make issues if the gap on the reluctor is bad. But it will not clear up once a misfire starts. It might be fine at idle, but off idle will miss. but it wont clear up afer it starts to miss.