Not sure about the Super Six setup, but both 1 bbl Slants and 2 bbl small blocks (same Carter BBD) had an electric assist choke in ~1974+ cars. I have one of each I got at JY. You need both the thermostat part and a separate thermo-electric controller part. You see the 1st on ebay all the time, but not the second. I would think the Super Six would have had the same.