Has all the symptoms, due the pinch test it should die less than a 1/2 second and also the hold plane vertical and no change to too lean.
Counterclockwise 1/8 to 1/4 turn.. pinch test 1 second to increase RPM then die and vertical may show a little increase due to leaning. If too rich it will start to hesitate on power up 2 seconds on pitch before RPM increase and die.