Looking at the Arrow POH, at 2000' P/A, you'll get 110 hp (55% rated) with either of these settings:
2100 rpm / 22.4" MAP
2400 rpm / 20.0" MAP
I've even seen guys do 2200 rpm / 19" MAP but that's just as fine.
I agree that you should avoid steep turns (includes 45 degrees AoB). Even with a low wing on a scenic flight (plank obstructing views), you should not bank any more than 15 degrees AoB in slow flight. You don't want to stall as you are likely to experience wingdrop - how current are your spin techniques ? You will appreciate why we practice HASELL checks and terminate practice recoveries at minimum of 3000' AGL.