Why no spark???

if you still have points, check to make sure the gap hasnt closed uo. also check them becauwse sometimes you get metal transferring from one side to the other and they contact preventing a spark. one more thing to check is to see if you get power through the coil. do this by disconnecting the ground wire, and hook up your voltmeter between the coil negative, and a ground. if you get no voltage reading, then you have a bad coil.