RE: SAITO FG-20 GASSER FOR 90/120 PATTERN
Frank,
Simple max HP figures are jive: you need to see HP and torque curves.
I have seen horsepower and torque curves out of the Saito folks so I know they perform them like any reasonable engine manufacturer. How did I get to see them? ... Don't ask.
If it will turn a 15-10 APC in the low 8's then you will have enough for a 9-1/4 lb practice ship.
later,
Dean