...it's undergoing a resto of sorts....I think it should have been left as it was....I attended that event with a Prowler Club and it was a blast...even got on Boyds "American Hot Rod" TV show by accident
Look at the high beam headlight in the photo. I've never seen that on those years before.
I do recall a 3rd one added to the grilles I believe were the Fury's in the early 70's. They were a high beam automatic turn off feature when on coming headlights approached when your high beams were on.