We did an original restore on a 57 Cameo and it had a 3.55 behind the Hydramatic. The 57 trucks came with 265's even though the cars went to the 283. It was geared PLENTY deep but would be much more cruise friendly than a 3.90. You can see the "V" with "Hydramatic" on the door emblem.

[img]https://i.postimg.cc/d7tnjt3j/Cameo002.jpg[/img]


Evan