i found these instructions on Restorations by Rick's website. I used them and solve my issues:
Front to rear adjustments are on the hood side area of the hinges.
Up & down adjustments are on the inner fender area of the hinges.
Side to side movement is controlled by the latch positioning and fender side bumpers.
On rare occasions the side position has to "tweaked" by a push on the rear of the hood to the side, causing slight bending of the hinge arms.
The front height is controlled by the bump stop studs with the rubber caps.
A common alignment problem on E-body & 71-up B-bodies is with the rear hood edge being up too high with the hinges being adjusted all the way down on the inner fender.
This is an adjustment problem! Start by moving the hinge up on the inner fender. (yes, up!)
Then, loosen the 2 rear bolts and leave the front bolt snug. Now lift the hood to make the hinge rotate (as viewed from the side). Retighten the rear bolts and check the fit. This procedure will get that tail to come down. Adjust the front-to-rear dimension on the hood side bolts.
It can be frustrating and take some time, but these hoods will fit correctly! I’ve installed them with the hood sitting about 2 1/2" above the fender...using this method, the hood was fitting perfect in a few minutes!
Rick