[1930artdeco]

Here is another thought, albeit a long shot. After verifying the above check to see if you have a wireless distributor. Sometimes the contact arm wears a grove in the lower plate of the dist. Or if it is a stock dist. Check the wire from the lower plate to the top plate as it might be grounding out. Even, the armored cable that goes into the dist. Could be screwed in to far and grounding out-it only needs about 2 turns or so. Again these are long shots.

Mike