I would too! I think the short stroke 332 could live at five grand on the highway.
The 3.10's are stock on the older cars, 57 to early 60's used them. It is a decent highway gear, no tach on my old beast but it think around 2500 rpm at freeway speed, 29" tall rear tires. There are also lots of Nascar gears in ratios between 3.0 and 3.3