CM 570 misfire and power loss

[Finland25]

Hello to all. Maybe somebody have any thoughts on my problem. I have cm570 with 1,4million miles(ECM shows, but not sure). Bought a truck with rough idle, Changed all actuators and its solve the problem. Drove about 150k miles and now I have a misfire at idle and under the load, also loss of power. No fault codes. At this time I did rods and mains, cams was ok, new turbo, fuel pressure is ok, injector test from in-site is ok. Engine is dry, no oil leaks, maybe couple drops of oil from blow-by tube in the morning. Cam and crank sensors, intake pressure sensor new, boost ok, no smoke, no coolant lose, oil change 10k miles 15w-40 and add only 1 gal between. Have a little blow-by. All oil analysis came back good, no soot. What can I check else? Maybe I miss something small? Any way thank you for your attention.