Any Chrysler Techs out there?

Killer6 said

With no codes it seems that it is possible You have a fuel quality issue, have You taken a fuel sample, and are You running premium fuel or???????????? It sounds like a
lean or "dial back" response as the boost/cyl. pressures start to "hit". If the ECU sees any detonation it will take out some boost & timing to "fix" it, it will not set a code.

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I think you are on to something here. Last night on my drive home I was monitoring the MAP pressure on my scanner. I noticed that this miss always started at the same manifold pressure, ~70 Hg. Do the math and that is 34psi..... I think car is dialing itself back, it sounds like a car with a 2 step when this happens.

Going to check the wastegate solenoid. Seems like it might not be opening (or plugged) to send psi to the wastegate. I did test the wastegate by its self, it is functioning.