Super Stock leaf springs

I just replaced the springs in my Duster and the shackle on the left was straight back as in the picture in post #1. I was getting ready to investigate it further when i saw this. The car came with a 65/67 b body axel. The perchs are 43" on center, but the pinion angle seems off, high. I was thinking the perch ended up being off when it was welded on. Long story short, I popped it back... not easy, but now it looks correct.
Now I just got to get my motor in and see what happens.