Fender Flares?

Indy cylinder head had a 69 Dart drag car with the rear fenders not flared but widened.

Think it was about 5" wider than stock. The sides bowed out like a roadrunner or charger and looked factory.

It was done to run wider tires and needed to look totally stock and unless you really knew how it should look could have been factory

It was a b5 blue car. Have not seen it in a long time