Anybody have any problems with the 91fx and the bisson pitts muffler? I took it down to the field today and it acted like there wasnt enough back pressure from the exhaust to the tank. Turning the high end needle did nothing.
Pretty funny. I just responded to this same question that you posted on a different thread. I didn't realize we were talking about the same plane!
http://www.rcuniverse.com/forum/fb.asp?m=4738136
Sandy T