318 issues

just out of curiousty, don't know if anyone thought of this, but how about your vacuum advance on the distributor, get a vacum pump or suck on the end of the hose and see if your rotor moves, then that means your vacum advance is working, provided you got it in the right ported vacum, that would make it pop if timing is retarded during acceleration, also what was said earlier, pull your cap off and try to turn yout rotor, if it moves a little that means your mechanical advance is working ok