[Daves55Sedan]

BTW, if you do have the dew and condensation problem in the area you are living in, you also need to keep an eye on the ignition rotor TIP (the portion that makes contact with the underside of the distributor towers). That tip will turn black and green causing poor electrical continuity between tip and tower.
You can carefully file the corrosion off the tip but don't take off too much metal. Just get it clean and shiny again. In the past, I have dunked my tip in a plastic jar full of acid and electroplated the tip using a small section of old copper tubing to help prevent the bare steel of the tip from corroding again too quickly. Never submerge the whole rotor in acid. Only hold the TIP of the rotor down into the acid so that the acid won't eat away at the connections between the metal tip and the spring-steel electrode for the coil tower. If there is no protection afforded to the bare steel tip, it will corrode VERY quickly and you'll be cleaning it again and again. It will be necessary to constantly move the rotor around in the jar as bubbles will form around the tip and you can't see if your tip is actually dipped in the solution. Try to get your piece of copper BELOW the rotor tip as that is all you are interested in plating, BUT DO NOT allow the copper tubing to ever touch the rotor tip.
After electroplating the tip, it is important to take another clean jar full of hot water and dump some baking soda in it, stir and wash the rotor tip in the solution with a terry cloth and dry the rotor. You can polish up that newly plated tip by sprinkling a little bit of rubbing compound on a shop towel and rubbing the tip back and forth upon the towel laying on a flat surface. That should help to keep the tip clean for a while, maybe a year.