George
I had the same issue with my Dart. The factory design sucks for sure but it's all we've got. I fixed mine the same way 340jeff said. I used a dye and threaded the studs that the hinge mounts on and then used a nylock nut to thread onto the post. I tightened it down just far enough so that when I opened the hood which will cause the nylock nut to turn with the hinge, the nut was almost tight against the hinge. When you close the hood the nylock will again turn with the hinge but only as far as the hinge rotates. I have mine adjusted so that it is fairly snug in the open position so that when its closed it isn't to loose. These hoods are a pretty big and heavy piece of metal and I found that the clips just wouldn't hold the hood secure when closed and when driving down the road I could see the back of the hood by the cowl kinda jiggle a little bit going over bumps in the road and it drove me crazy. Now the hood stays nice and still and opens and closes just fine!
Hope this helps!
Ron