That's still pretty high. How tall are the rear tires? I ran 3:90's in my '27, and with a 30 inch tall tire was cranking about 2500 at 65, if memory serves me correctly. (It's been 7 years)

The other factor is how much highway driving do you do? One guy in our car club was running 4:10's, and he couldn't go on many cruises with us because the r's were too high.

Don