First time when the original burned up it was a 3.08 out of a 70 Coupe de Ville. With the 235 and 4 speed it was OK on flat ground but didn't have enough ratios for the hills.
Now it has a 2.73 out of a 74 Camaro and with the mildly breathed-on 350 and TH 350 it does fine. Although at 70-75 I do wish for an overdrive.