My understanding was the Superbirds didn't have the cut-outs. Mine did not have them. I bought it in '78.
Do you know when your Bird was built? That might be a better indicator.
They were all built between Oct 17th and Dec 17th, and there is a list of VIN numbers in the order they were built. 178622 was mine. And I used to know, but can't recall now.
Those dates are all early so that would explain why no cut outs.
The list is when they were shipped and there are cars on there twice because they shipped twice. Friend of mine had a Petty Blue Sixpack that was listed twice. Had a quarter panel that was damaged and then repaired and shipped again
