I agree 100% with awhtx. It's not the tires. And although the backspacing on those wheels may not be exactly optimal, they aren't that far off either. The clearance in your pic looks good too. Something else is kerflooey and shot springs are the most likely suspects.
What size tires and are you running spacers up front? If so, what size? Thank you
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the pic shows 17x8 05+Bullitts using a 1.5" wheel adapter making for 4.75ish backspacing which is considered ideal. The tires are 225/45/17(got them free) but I have room for more 235/45/17 for sure maybe 255/40/17 even
the three basics are
of course these cars being built in the millions had pretty loose production tolerances and after 50 years of who knows what, other thing such as alignment specs can make a difference as well