which is correct way install- trunk weather strip ?

I find the factory seal on my old cars is not lined up/even with the lock/latch at all, more toward the right of the lock on few inches (passenger side). Doesn't really matter, though.
your car was no doubt built on a wed, the 3 rd week of the month during the summer! really, makes sense that the seam be at bottom on trunk. I have never been real successful sealing any truck 100 % of any mopar. there are also some models,like 68-70 b bodies that the engineers did not design trunk lid correctly and you will Never seal it!!!!!! ha