Cool piece.
Buddy had a really nice dentside ramp truck. He built a really nice 460 for it. It was geared really steep and would barely get 4-5 mpg on a good day. It had enough springs in the back, it wouldn't move no matter what he put on the back. I suppose if you updated things, maybe with air ride and faster gearing it might get mileage that is bearable? I know they were popular, but gas was under a buck a gallon back then!!!