RE: What does you Funtana 90 weigh?
Been wanting a Funtana 90 for a while now but couldn't reconcile the cost of a big stroker. Then reading this thread I realised I have a ST G23 doing nothing. Had it in a 13.5 pound Little Toot biplane turning an 18 x 6, no probs; that's a running in prop for this engine. I reckon it'll swing a 20 x 6 carbon Mejlik (real slim blade). The manual recommends 18 x 8 to 18 x 10 so it should pull the 20 x 6 Mejlik (maybe...).
So let us know how yours make out on the G23 and I'll give it a go myself if you're successfull. Thanks for the idea guys!