dual point distributor

Chewy,
Do you do that while the car is running? blocking off the 2nd set of points i mean. The car runs until i apply vac. to it. Then it just shuts off.. I dont really get the point of the dual point ignition. Is electronic ign better? I would assume so. I do like have the original dist that came with the S car. I looked at the wires last night and saw very good tight connections and no corrosion or dirt...I spun it and watched the points and one would close just as the other would open, but thet were never both open at the same time. Does that mean anything?...I didn't put a guage on them to measure the gap...I'll do that tonight.
If you know someone or a shop that has an old distributor machine, that's the easiest way to get it adjusted. The opening and closing of the points should overlap....before the first set closes, the 2nd set should open. You can check the dwell on each while the engine is running by putting a piece of thick paper between each set, one at a time, and adjust as necessary. Then check the combined dwell reading and compare it to the factory specs.