Generally speaking, cars with 14" tires got 3 .91's, and cars with 15" tires got 4 .10's. That way for any given road speed, the engine rev's would be about the same. I found that my SuperBee, with 14" tires, would run 3 ,000 rpm. at 60 mph. I ran across other SuperBees and RoadRunners that had 3.55's, but not many with factory 3.91's.
When I first put my 440, automatic 1967 R/T together, I used 3.91's on a SureGip on a 8 3/4" . The increased torque of the 440, coupled with bias-ply redline 14" tires made the car pretty squirrelly. They only stayed in the car about a month before I changed them to 3.23.