If i'm understanding right are you saying at idle if i point the plane up does the engine stop . if this is right then yes it does quit .
I reset everything again today reset the high needles and adjusted the low in idle set the idle at a good low idle then ran the engine full throttle with the plane pointed up it ran fine then did the down pointing of the plane ran fine did the pinch test and had no rise or low of rpm then i lowered the throttle to idel and pointed the plane up and the engine quit.