Thinking about a long roadtrip

So, it looks like I have both 2.76 and 3.23 pots to choose from. Any thoughts?
I run 3.23s in my 69 Barravuda with 245 60-14s and it turns right about 3,000 RPM going along at 60-65.... in theory, if you are running 3.23s and are going *** MPH (or KPH....) at 3230RPM, then if you swap to 2.76 gears, your engine speed would drop to 2760. That's 470RPM lower, that's a pretty good drop.... especially if you have the other chunk laying there all assembled and ready to go...

If you do swap, put it in and run it a bit to make sure all the bearings etc are good....