Mine had slight adjustments on the fender side.  The bolt holes are oblong and allowed a little play on both the hood and fender side.  I had the exact same problem you had and a half turn on each bolt let me play around with fitment.  Worked like a charm.

Also, oil them

Thanks guys, it's amazing what a little oil will do.  They are still not going all of the way down but are doing much better than they were.  Sometimes it's the simple things that you overlook.

Hey Tubo I've never seen that stuff, is it something that I can pickup at most auto parts stores?
 

Strange at it may seem, if the rear of the hinge is moved up the hood will go down further.

The trick in a new installation is to remove the springs and adjust the hinges so the top piece lies perfectly flat atop the inner fender, and almost touching the front of the vertical part of the cowl, or as close as possible to that point.  Then when you bolt the hood on, you are assured you have it as low as possible.