My 8.25 2.45 to 3.55 SG swap

So the math says, I was at 1900 rpm @ 60 mph before the swap in 3rd.
(Trans 1:1 , Gears 2.45:1 , Tire 245/60-R15 = 26.5 diameter)
Now:
2700 rpm @ 60 mph.
All the same except the gears.