I have run a 16X8 APC, and a 17X6 APC, but the 18X8 Top Flite has done the best so far.

My next step is to pull the motor, and check the venturi on the carb, to make sure of the size.

My target is an 11 mm venturi. Once I have that straight, I'll try different props.


Just curious, what is the largest venturi the motor will tolerate?

thanks

Bill