As far as the powerband of the 22RE, I believe it would make decent torque through-out the RPM range. Also the I've heard the long stroke (3.62 inches) safely limits RPMs to around 6000.
![Head Scratch :headscratch:](https://board.marlincrawler.com/Smileys/marlin/headscratch.gif)
6000
![Huh??? ???](https://board.marlincrawler.com/Smileys/marlin/huh.gif)
ive had mine over 7500, very short time though
torque starts building in these little guys really low, depending on the cam profile and cam timing anywhere from 1500-2500