thats what the slant guys do... drive to the track on street tires and stock gears then run short *** slicks...
if your motor is at all built it will like to run a about 2500-3000rpm. i got 20mpg out of my slant six while drving to vegas and back from phx @ 65mph(3000rpm on the 3.91's and 28" tire)
i go 50 with my 4.88's @ 3K LOL