I wonder how "close" your car is compared to the FC7 HEMI 'vert, do you have the b'cast sheet? Are you saying it was at the same dealership or from the same "area"?

Pictures of the current "roll" would get more opinions as to whether they are factory rolled or done after the fact, but it appears by February they had the fender/trim clearance issue combinations figured out.

IMO, a Feb. '70 340 'Cuda convertible with 15x7.0" wheels and E60-15 Polyglas GTs SHOULD have "normal" fenders with wheel lip mouldings.