RE: Will this work?
Tom: I have several planes in the 32/35 lb. range powered by G-62's, and they fly very good - but no where near close to 3-D performance. I run both 24 x 8 and 22 x 10 props. One engine that has hundreds of hours and well broke in does very well on a 23 x 10 prop.
A good rule of thumb for everyday flying is to consider 10 lbs. for every cubic inch of displacement, so a G-62 being 3.7 cu. in - will fly up to 37 lbs.
You won't have any problem with the Stearman/G-62 combination.