Thanks again Wheels, didn't see the extra pics until now. Will have to look for the extra holes, albeit completely trivial if there. It may only identify Trans Ams and Formulas (!) that were used for SATB stunt scenes...
Kerry, yes, My 78 Formula. And yes it fitted with the Z87 option sound/water/heat shields that were a Camaro option. They are hidden and figured may add an extra level of seal prior to door and rubbers. All Firebirds/Camaros had the dimples for them, along with the top seal onto the cowl, not shown fitted.
They would perhaps be of extra use again on TA or 71 Formula that have the fender extractors, mainly when hosing around inside fenders, although were originally aimed at the more plush base models.