Will give it a try, pull off the distributor cap and spray ?Check spark when this happens, maybe moisture in the distributor cap or somewhere else in the ignition system, or old worn out plug wires.
Yes-- I've seen that happen, and I mean literally. Start the engine and then turn out the lights in the garage, or start it outdoors at night. Very obvious. Good way to locate leaking old spark plug leads, too.Could be an arcing coil.