B body 8 3/4 in a 67 cuda

my 67 barracuda has a b-body 8 3/4
i have 15x8s with 5.5" backspacing, and 275/50-15 tires
the PO did NOT move the perches, so the springs were muscled outward to line up, an i had to fix that....wore the bushings out QUICK because i didn't know it was like that when i got the car

that's about all i have for tips is to be sure to move the perches and my wheel size, but definitely measure for your wheels, because there may be some variation between my car and yours