Well, here's the problem.

First of all I don't know much about it besides it running on nitro, it's 70". The motor is the largest recommended.

I own a typhoon 3D, but been flying my friends edge for a couple of nights now, (he built it for me to fly, he doesn't fly kinda funny) the problem is that the engine seems to run lean when it's above 1/2 throttle while flying. By lean I mean it sounds like it's starving for fuel. but when it's on the ground and you hold it, it runs fine. Also when it's at 1/2 throttle and I make a dive and accelerate, without touching the throttle, it does the same thing. I think that it has something with the air into the carb, but I'm a newbie with these rc planes so I could be way off.

Any ideas on how to adjust the fuel, or adjust the carb? Or do I need to get more details about the motor and exhaust? If so i'll post back in the A.M.

Thanks for any info.