I reckon you'll find a 16 x 10 3 blade will be too much prop for the FZ.

My first YS was a FZ140 around 17 years ago and from memory I used a APC 15.5 x 13N on 30/20 fuel mix - YS's love nitro.

You want to aim for around 8200 - 8500 rpm on the ground.

APC pattern props are much more efficient than other brands, as they are designed specifically for pattern. You may have to experiment with a couple of props to find the one that best suits the plane and your flying style, but that prop should be pretty close.