Big engine for that plane, you can throttle back, but that isn't always the answer, as this reduces RPM, as well as power. (5000 RPM is 5000RPM no matter how many H.P. your making)

Best to save that eng. for your other project. You move the firewall back to make room for the carb on a fourstroke, but also to keep the C.G. in range.
Break in as per the instructions.



Jetts