Actually Murdoc, a carb was designed in the thirties to net 68 mpg. I DO remember reading about that in my engineering text books. The big three or the Govt bought the guy's design and shelved it or blew it up.
Actually, what your pop was describing is similar to steam turbines using downline inefficiencies to improve stuff at the intake, so it's probably not a hoax. Guy's just applying steam plant methods to gas driven cars.
From a volume manufacturer's view point, this would be absurdly too expensive! There are sometimes cost benefits to making cars inefficient: because making them too efficient costs too darn much and would not sell.
Ain't it cool?
Cheers from Chris in NC with the stalling MOPAR
