Walt:

I run the Saito FA-120 engines with MAS 14x8 3 blade props, for me they do fine. Knowing you didn't like my selection on your Twin-Air, you might want to apply a grain of salt. My favorite Saito is the 120, but if you are going to the FA-150, the FA-180 is just $30 more than the 150, and adds one ounce. After all, if you're going to overpower he plane why not do it up brown?

The FA-120 with the 14x8 3B pulls my Ultrastick 120 very nicely. And it's the older heavy version too.

Bill.