[Argess]

Well....covered 20+ miles and problem is gone. To find out what the problem was, please send $1 in a self-addressed stamped envelope to.....

LOL. Actually, it's almost gone. Down to a few light misfires at various rpms and engine load. What is different form when the problem was really bad?

new coil
moved slightly chafed ignition wire
added alcohol to gas tank in case of water from condensation
day was not as hot and far less humid than before

So it may come back. I'm thinking my nice 9.5 mm Accel plug wires and other HV components may be the problem, and/or as above, the ignition module. Best guess on the "bang" is crossfire vs misfire.....a cylinder firing at the absolute wrong time from crossfire. So it looks like a ignition component replacement for a while.

Oh.....I have had a bog for a while which didn't help diagnosis.....trying to seperate that from some of the other issues. Fixed that. Bumped timing to 20 intial and 38 total and swapped accel pump cams for a bit bigger fuel shot.