Overheating 360 new engine

RustyRatRod said
That has 30% or more of your radiator core blocked from air flow

More like 50 % or more.

Maybe it is time to dump all the fancy stuff, get a stock or stock style copper brass HP/ AC radiator, the appropriat pulleys, fan and fan shroud.

Or maybe you are chasing a ghost and the engine is just not broken in yet.