good idle...no rpm

[GITCHIGUMI]

I have a 41 fordor and had just installed a new coil, condenser, rotor, caps, adjusted everything, it never started better and ran the better than it ever had.....for about 1 week when all of a sudden it developed the same symptoms as you describe. After numerous attempts to get it to run it finally wouldn't even start. After researching here on the Barn and elsewhere he only thing left to try was put the original condenser back. Well guess what...problem solved. She starts better and runs smoother than any of the other cars we own.
The new condenser must have been bad and then dead shorted so it wouldn't even run.