Originally Posted by cobalt327
If it is popping from the carb, the timing could be too advanced. Have you turned the distributor from where it was originally? If you can, put it back where it was, or turn it CW to retard it from where it now is and retry.
It could be the points or condenser are bad, the points dwell could be off.
yes all ways check your points i had that happen one time over looked them replaced all kinds of stuff that didn't need to be replaced... the car ran great shut it off and when i went to start it same thing cracking and popping sounded like it wanted to run even started once ran like crap though..