[ClassicAutoResto]

Might have to shim the bottom hinge mount, that would take care of the high front/low back. You can also try to adjust the strike plate inward to pull the door tighter in. Most new weatherstripping is tight until it shapes itself better to the door. I have had a few customers have the same problem, adjusted the striker, then have to readjust it back after a few weeks or so depending on the temps outside after it shapes itself.