I have a Fuji 32-A I bought a bout a year ago but I have only begun to use it in the last month. I having a ball with it in my 77" Sukhoi but I am having a strange problem with it. On the ground it runs super as it does in level flight, however, when I perform a knife-edge in either side or flip over inverted the engine loses about half of it's rpm. I have made sure everything is tight and secure so I am sure there is nothing moving around. Any ideas at all? I have approximately 2.5 gallons through it. Another thing I have noticed is that when I first start the engine up it runs great but when I finish my flight the low end seems to be lean. Reading the manual it says I need to adjust the high end needle for this symptom and not to touch the low end needle. When I adjust the high end needle when the low end seems to be lean and I go for another flight, it seems good. Could the engine be at the point of breaking in?

Thanks,

Chuck