Steve
many people used that motor with great success, It does however Have to be loaded properly, this means run a 12 or 12.5 inch 4 to 4.5 pitch prop or a 12 x 4.25 3 blade. If you run a 5 or 6 pitch prop on the FSR you may get some serious wind-up in the wind
I would use a 275 venturie with a standard 157 diameter ST or PA NVA
Randy