So i didnt really do much more on the plane or the motor. I did have a question though. If the outlet holes were drilled in the muffler but no outlet tubes were installed would it make much of a differnce to the power or sound of the motor. Im not going to run the muffler without tubes but it was just something I was wondering about. Also generaly how loud are 30cc converted homelites with 16" props because I'm not sure if my flying field has a sound limit or not.

-sam