Well, I would need answers to my questions before I could state that with more conviction without hearing or seeing the engine. But, my gut tells me you need to turn the air-bleed screw 1/4 turns CW until you can idle the engine for at least 10 seconds and thurst the throttle rapidly to high speed without the engine quiting. That adjustment is made after the engine has heated up and ran without the glow plug heater for a good 20 seconds at full throttle.

Also, in my opinion, no new OS engines idle very well until you have had at least 10-15 full tanks of fuel through them and some as much as 20-25 tanks. The are just so tightly made, that until they loosen up, the strong desire to stop at idle due to friction is too great. Until then, I fly with my idle high and takeoff with running stops and stop the engine after safely landing and go out on the runway and get the plane.