I have a G62 in a WH Extra 300LX and put about 10 flights on the plane and then all of a sudden it kind of went to idle on one flight and it wouldn't take any throttle. If I gave it any throttle it would just pulsate. This happened on the last two flights. Ralph has checked out the ignition and it's ok so I guess I'm looking in other areas now. The fuel system seems fine and will hold pressure so I'm leaning towards and overheating issue. The problem started once the weather really started to get hot and humid outside. The pics show the cut outs I have on the plane. Does anyone see this as not being enough exhaust air for the engine to stay cool?