1968 Barracuda back space question

u could run a 4 or 4 1/2'' backspace...……...
Yep, and if you think those stick out, ya' should'a seen it with the old N 50s the PO had on it.
4.5s are on the shelf. But even a 4.75 BS leaving almost a half inch from the springs, IMO, would be too close on the well lips at stock height.

upload_2018-8-24_8-36-5.png