Sometimes things are clearer in the dark. was running the A in the garage when a storm blew up and knocked out he electric. im running a B distributor. I had never noticed before but there was a blue spark line running from the condenser case along the bracket to ground. the holding bracket is soldered on and mine was loose. I pulled it and fixed it. yes I dropped the mounting screw. no I never found it and yes I found a replacement. the spark at the plugs is now blue instead of orange.