You will find a lot of opinions on this, but generally you want to
climb at high RPM... cruise at the lowest RPM for which you can pull
the desired power. [Allowing, of course, for any limitations on your
RPM/power chart, yellow arcs, etc.] That means 2300 and 34.8 is a good
cruise setting for your turbo Arrow. Lower noise, less vibration, and
a lot less heat. [BTW, check your tachometer some time. Most of the
older ones read anywhere up to 200 RPM low.]

All the above assumes operating ROP, of course. If LOP then the power
settings are determined by fuel flow alone.