MPG experiment....1976 Dart Lite

Not dead, but stalled. The car had some fuel delivery problems (plugged vent on tank, failed fuel pump, and then carb issues.
I installed a sender for an aftermarket gauge in stock tank. The hole was cut to large, so the sender is in place, but if I fill the tank, it leaks at the sender.

I am going to epoxy in a patch so it does not leak, and then I will resume.
In the mean time, I have gone to synthetic in trans and differential, and section the old nasty dual exhaust, into a single system with a Dynomax welded muffler.

I will post more shortly when I get pictures off the camera.