Progress Thread Gas mileage

[Dylan.D]

So I have a 1971 Mach 1 and I have a couple of engine to choose from. I'm wanting an Engine that produce a decent amount of horsepower like 300-400, and want a good amount of gas mileage thats going to be the biggest problem. Im alright with less than 300 just need to mileage above all else Got any suggestion.

 

[WORTH]

Mileage has more to do with how you drive than any other factor. I could get 20 mpg taking it easy with my '70 ragtop with a 351 and 3.00 rear gears, but I usually got 15.