It's been 40 years since I was around a 985 or a Jacobs. The main thing I remembered was that a 600hp had 9 cylinders and I was thinking a 220 Continental had 5. There were a lot of different engines in Stearmans.
One day this past August someone was shooting touch and go's in a Stearman while I was flying my Slowpoke. It was fully cowled with wheel pants. Seemed to have plenty of power. I assumed it to be a 450. I had to land the Slowpoke to watch the biplane. We were on different runways.
I've flown a Slowpoke ARF ever since they first came out. I have one kit that is not completed and two other ARF's still in the box. I haven't worn out the first one yet.
The ARF is engineered a little different from the kit but the external shape is close.
The tail heaviness is about the same.
Jim