After some discussion I have made the following adjustments to the intake install:
Re-route hoses under the corner of lines:
New MAF clocking closer to 11:00 when viewed from passenger side:
Next headed out to do new temperature comparison runs.
I reclocked the bottom of the intake (changed the relative orientation of the pieces) to ensure clearance away from the fan shroud.
It would be handy if the parts had indicators that showed the correct relationship. I also had a great deal of trouble getting and keeping the circular gasket gasket in the hole.
My initial results looks promising in that IAT1 during cruise now goes near ambient as expected. After I reset the battery the Scanned Ambient went to 32F, slowing coming up to 52F by the end of test 2. I assume it has a delaying function since generally ambient temperatures don’t change very quickly.