Clyde: It appears you have replaced all ignition parts. I think I would take a vacuum gauge and go thru all the tests for mechanical problems in the motor.
The car starts, runs but not well, so maybe the two low cylinders or their valves are the problem?
The vacuum gauge can tell many defects in the motor. Good luck. Don
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Stuck in the 50's
1951 Ply Concord truck
1954 Nash Rambler 2 dr
http://www.picturetrail.com/elplymino
