sounds like a pretty stout mill to drive around.

If it were me, i would set it up for the track, and put up with the few hundred rpm difference on the street you are taking about with your gear choice. It isnt gonna get 30mpg no matter the gear choice, Why not make it run the best it can, and just throw a hair more fuel in it on the street

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, low 10.30’s 1/4
1.41 best 60 foot
6.56 at 104.17