Annnddd we have contact! Although a little cool today I managed to get a couple hours in the garage. Put in the new battery and a shot of starter fluid and off she went. Got her around the block and she was backfiring and sputtering and not happy at all. Brought it home, pulled the plugs and all sooted up. (they have probably 10 miles on the.) cleaned them up - it ran pretty good for a block, but, just in case I nursed it to the gas station and topped up the tank with fresh (non ethanol) gas - no difference. Got home and sure enough sooted up again. Cleaned them, and then leaned up the SU three flats. Started instantly ran smoothly and when I got home the plugs were nice and clean. Needless to say I am delighted but just a little perplexed. In my experience cars don't jump out of tune and I had to use a wrench on the nut so it wasn't loose enough to vibrate out of tune. The only theory I have is that somehow the choke cable was binding and that when I thought the choke was off it wasn't and leaning out the carb then compensated for the choke. I did fiddle with the choke and it seems smooth enough, but, we shall see. In the meantime it runs and I am happy. To my imagination it doesn't have quite the pickup as it did before but that could be me and it could be fine tuning.