MPG experiment....1976 Dart Lite

Mine was an "OK" runner but was also getting about 13mpg on the hwy when I first got it running. It turned out that I had many vac leaks and the carb was adjusted rich enough to almost overcome the lean condition. I'm happy to say that it gets 20-22 mpg on the hwy now ( at 65-70 mph :) ) and I'm running a 904 with a BBD carb. Now I'm not going for mpg but I'm definitely not going to make any mods to make it worse