73 E body front disc brakes conversion on A body. Where did I mess up?

Glad you replied and many thanks for doing so. Am very interested in your setup. Is your sway bar connected to a tab at the shock mount bolt? Was told Hellwig was mounted this way so could possibly be a solution.

No, mine is on a factory tab at the lower portion of the control arm as I recall. I'll see if I can grab a picture when I get home though to confirm. I think I might have had to shorten the end links a bit to make it work, but it's been a while since I did it, so I don't really remember what all I might have changed.