engine stall/lack of fuel
if it isn't firing at all, check for spark.
if no spark, check the dwell,
if no dwell, turn the ignition on and start checking voltages.
Points, condenser and ballast resister replacement is pretty easy and cheap, and most auto parts stores will have them.
You will probably be replacing your heads soon as that copper stuff will not last forever.
You may find one on the cheap at a junk yard or just asking nicely here :)