I would take the latch back off and install the hood to make sure the hood and grill line up correctly, then you could loosen top bolts of rad support and or grill if needed for alignment and then try installing the latch again, the rad support might need to lean backwards a bit or front grill needs to come out a tad or both.
You do not have the center support under the latch as well so I would get that in there first because that will push the grill out some also and help with alignment.
Incase you do not know what support I am talking about here is a link for it.
https://www.classicparts.com/1967-68...ctinfo/61-723/