1967 Ford Mustang MPG'S?
I have a 78 2.3 bored .60 over 4 cylinder mustang II. The displacement is roughly equal to a smaller 6 cylinder engine (3.1 liter) I get 18 - 22 miles to the gallon. If a car has a stick shift, It will get better gas milage because of less friction due to no torque converter. Either way, If you found a good deal on it I would still get it just because the joy of driving it will pay for the extra gas it uses. Yeah my car drinks more gas then I'd like it to, but I wouldn't trade it for anything else.