Here's my setup in the '67 FB:
WHEELS & TIRES:
• Torque Thrust II 17” x 7” (4” bs) polished aluminum wheels with 205/50/17 Somitomo HTRZ II tires in front
• Torque Thrust II 17” x 8” (4½” bs) polished aluminum wheels with 255/45/17 Somitomo HTRZ II tires in rear
You may have issues with the 4" bs in the rear. You might also have issues knowing what car you have ('68 in the thread subject line, but '67 in your signature

).