My Grille sticks up in the center over the hood about 3/8" yet the ends are even with the hood... is this normal? Can it be adjusted to get even?

 

Your hood latch may be adjusted too low, which is pulling the center of the hood down below the flush line. Loosen the latch bolts, raise the latch 3/8" (assuming there's that much adjustment left), and re-tighten bolts. Not saying for sure that this is the problem, but, as a former hood latch engineer with GM, I can say it's a possibility.

 

My new 10 was like that. When I was pulling the grille off to install my LED turn signals, the 2 10MM screws that go into the front of the grille were missing. I replaced those and it pulled the middle of the grille back down into place. Makes me wonder what other screws they forgot to put in at the factory. There are adjustable bump stops that each front corner of the hood rests on. As far as adjustment on the grille, I haven't found one.

 

I did just install a new Red Grille so maybe I need to loosen those 2 10MM screws and push the grille down and retighten.

I did adjust the hood latch but that didn't help... and may have pulled the hood off to the side a bit...