Volvo 850 2.5 144 hp Automatic accelerates poorly up to max180kmh

Hello guys, I don’t know exactly what else to do. I did a 850 140hp automatic and almost everything and still the moose pulls really bad and makes with effort 180 times only 160! What’s new? Complete ignition system, gasoline pump relay and filter also, complete exhaust with new seals. Compressions all 11-12, gears and converters were only changed this spring, new speed sensor is also on it. DK clean, also does not clamp and also Poti new, glove test Oil trap negative… Oil change 10w40 is also made… Now I have read of a T piece with hose that goes to the air filter box. Does one of you have some pictures like that? Do you have any other idea?