This is a new issue. My 1954 235 runs pretty good. I recently adjusted the valves. It has a newly rebuilt carburetor. I pulled all the plugs to make sure they are not fowled. I double checked the distributor cap for corrasion. Wires are good. It suddenly developed a miss when the engine is cold. Once it gets to operating temp it smooths out and runs well. Choke on or off makes no difference in the miss. Any ideas what I should be looking at.
