DOOR ALIGN ISSUE

I have been doing body & paint for many years & one of my pet peeves is body panel alignment. Making sure all the gaps are really nice. I am working on a 67 barracuda for a guy & i am in the middle of lining up the left door & fender. I have all the gaps nice except for where the door meets the cowl. The gap is about 3/8 to 7/16 wide. Now normally i would loosen the upper door hing where it bolts to the door & push it in. It will not go in any more. There is no more adjustment. Now i know you have to watch because when doing that the bottom corner at the quarter will move out. Any ways has anyone come across this problem ?