Since Carl is abandoning us for SEMA, I'll respond! I too have these with the same size tires on my 69. Carl had mentioned on his 68 the need to put button head bolts in the inner wheel wells for some added clearance.I haven't seen any rubbing on mine.
69 RS Conv therapy program, Autogear M22, 8-pt cage, with a new 410! SOLD
New therapy program - 68 Coupe. Will be survivor exterior, modern underpinnings! SOLD
67 Belair with perfect floors, pinchwelds and firewall. Hmmm!