Ok, the problem is partially solved, plug caps have been replaced and it does run better and changes character when the #4 wire is pulled. The number 4 plug is actually a bit lighter than the other three, but not white. If the pilot jet were actually clogged wouldn't the plug be lighter anyway, not lighter, because the cylinder is running leaner than it should be? I am still going to go into the carbs to make sure the pilots aren't clogged.
