Recently acquired a 55 Montclair that hasn't been run in about 20 years. I've got an ignition problem. New plugs, wires, points and condensor (same dist. cap that looks ok but might be bad). I have an in-line spark detector on the number one plug wire. Number one cylinder fires when it should but it also is getting a weak fire three or for times per revolution. I don't see any plug wires "leaking". This is a load-amatic distributor (which is firmly stuck and will probably require my taking off the carb and maybe even the intake manifold so I can break it loose before I can remove it). Any suggestions other than an new cap (or distributor).