Take your final overdrive ratio, and multiply the gear ratio, I'm sure you know this, to get a better idea what you want.
So if your od is 0.68 x 3.55 = 2.41. I probably would not go lower, that would still give you excellent acceleration and cut the rpm at hwy speeds.
Your 4.10 gives you a 2.78 in od, still not terrible, but the 3.55s will drop the rpm a good bit.