Found it!! Now it is idling right around 1100rpm's. I had a spot on the corner of my UIM where it meets the UIM to LIM gasket that wasn't quite sealing. I grinded it down flat and put a new gasket on just for good measure... and that sealed it right off. Thanks to Dan Chadwick for all the pointers.
Also, now that the idle has come down, I haven't had any glowing manifold issues.
Here are a few pictures... still looking pretty rough, but I'm about to put the rest of the trim back on. The taillights go on tomorrow as soon as my fedex package gets here that has the brackets in it. Front lip and undertray go on tomorrow.
Yes, I know... I really need to put the lip on:
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