donz@tekig.UUCP (Don Zocchi) (03/20/84)
I have a 1965 Pontiac GTO with 3 Deuces, 389 4 speed. Best 14 MPG (Mostly highway) Worst 10.4 MPG (Mostly city) Average 12.5 MPG (Mostly city) Best and worst are somewhat irrelevant, because it depends on driving conditions and spillage when filling, and incomplete filling of tank.