[Old Goat Racer]

Originally Posted by 462ta

presently have 72 formula with 406, ported 13's crower 60916-221/229cam, auto with 3.23 gears and 28in tires, am i right to believe that going to 3.73 gears will provide a noticable diff in performance, i don't drive much over 50 - 60 mph when on the hwy so revs are not critical. Did read the archives and some experiences were shared.thks

If you had an A body rearend, I would swap ya even up.