Rough running engine

[bobbader]

Merely replacing the condenser without it changing how the car runs does not guarantee it's not electrical. You rebuilt 2 carbs and using either of them results in no change. Did you do anything to the distributor? Rebuild? New points? Distributor cap long body? Clean the points and reset gap?

How did the engine run before the rebuild? Is it possible the miss was there before the rebuild? That would indicate the problem is outside the engine.

I think the first thing I'd try is point gap on each lobe of the distributor cam. If that's OK, check the gap between the blade on the rotor and each terminal in the distributor cap body. Keep going from there.