[JQmile]

I think that most people could agree that no matter what mileage your ride gets when it's done, it'll be sweet. I know of an LS-powered 69 Camaro with a 6spd that got 27mpg so I'd say 30-35 is definitely possible. I do know from driving bricks, that speed kills (mpg that is). My 89 would only get about 19mpg at 75mph, but 24-26mpg at 60mph.

Edit: a grille block should help a lot, at least it did on my other Dodges. Picked up a solid 2mpg with one.