Hinge is welded to the fender.
At the back above the hinge, the fender was higher than the hood. By 1/4" or so. And the the front part farther out, the hood was 3/4" - 1" above the fender.
I shimmed the hinge end up, to make it level with the fender, then put a 2x4 under the Front corner of the drivers side, and pushed down on the passenger to twist/tweak the whole hood corner to corner.
Then, it was closer but still bad, so I shimmed to front of the fender up off of the core support.
Which got it to where it is now.
The fenders line up with the body line at the doors, and the hood is level with the fenders now back there.
Core support is evenly spaced off the frame, fenders are evenly spaced/shimmed off of it..
And the hood is 1/2" or so higher on the passenger side.... So it's still like the whole AMD hood is tweaked corner to corner.
Good enough for race truck

So I'm just going to continue on, and get it painted.
I can tweak hoods and fenders all winter or on rainy days. Lol.
Currently, if I was to twist the hood and make it level at the front, it would be higher than the fenders 1/4" on both sides.
And the hood latch is adjusted all the way down already. Slot them and the hood won't work anymore...
So... both fenders spaced farther off the core..?
If I ignore it long enough I won't care as much maybe
What's funny is with all the GM pieces, there were no shims.