Hi everyone, pretty new to rc planes , but i have been running cars for some years now so i am familiar with carb tuning. I have a pulse xt40 with the evolution 10 gx engine, i would like to call this my nemesis! I have several issues with this great engine, on my maiden i damn near crashed once the plane hit 3/4 throttle the alerons would fludder and then straighten. I fixed this issue. The ignition was bad and throwing interference, hh was great and replaced it. The issue i have now is that in a dive the engine looses power and wants to die. I have checked my tank, the clunk and lines all look like they are supposed to, this happens at full tank or half. Normal level flight is fine climbing is fine. I can also re create this by lifting the plane up and tipping it forward. I am using the correct type of fuel line, and clunk. Also i am running a 12x6 prop. Thanks for the help