Yeah I'd probably say just a few hundred RPM, it definitely wouldn't be very drastic at all.
Let me ask you this, what is your typical driving conditions?
Are you in town doing a lot of stop and go driving or are you going to be on the highway a lot?
If you're gonna be in town a LOT, don't fear the gear! But for highway, 3.27 would probably be excellent and would have a much more noticeable effect vs going with 3.55's, but that would only cause the low RPM buck to be even worse. Or you could really play with the clutch pedal and spin it up to a little bit higher RPM to overcome the buck.