Intermittent boost loss

[Chamberpains]

Is your truck emissions disabled in any way? It's very common for horrible deletes to suppress the check engine light from coming on to hide their shitte work. If so, you know what your problem is. Get the programming fixed. If it's not disabled in any way then you may have the wrong cal in the ECM like Mr. Hagg said. Look at the data plate on the valve cover and get the calibration code off of it and check if it matches the current calibration you have in the ECM.

Does the CEL (check engine light) cycle or come on when you 1st turn the key on? If not you have a faulty CEL circuit.

Those codes all trigger amber CEL and derate the engine. The fact your not seeing the CEL is a problem that needs to be fixed.