Excaliber,

Actually, this engine is well worn and running on 80:1 now. I tried the NX 22x8 prop but I liked the plane's performance better with the 22x10. I'm going to try a NX 23x8 just to see how it goes. NX props are easy to get since Airwild's shop it very close by and their performance seems to be pretty good also. Taurus is considering using NX props as a standard for establishing engine performance baselines.

BTW, Bill @ Taurus is now recommending running Amsoil at 100:1 after break-in because of some issues of gumming and sticking of the piston ring.