Moki 20 Johnny? Maybe you mean 2.10 right. Since they don't make a 1.20, at least they don't anymore.

I've got a Moki 1.80 in mine, I can tell you that is plenty for glow, absolutely. I can't imagine a 2.10 in this airplane. Mine goes vertical at will, unchallenged. 18x10 at 7800r's, and it's a tractor.

How about an RCS1.60, although the BME is my choice really. If your going to go the 44, might as well go to the 50, it's only mere ounces heavier. I've got one of these for my Midwest EXTRA, yet to fly, however, I'm sure it's got what it takes. At over $600 all said and done(that's including muff and spinner) it better, and I have no doubt. Don't know though, that' does seem a bit heavy for the plane. My Moki is no lightweight, but ready to fly, it's lighter then the gassers.