69 383 barracuda
I believe the 'cuda package was marketed similar to the Swinger package in 1969. Generally lower optioned with the the stripe package. And yes, I also have seen (and tried to purchase) a red '69 Cuda 340 auto. And not all grilles were blacked out on the 'cuda package, it depended on the color. Also engine callouts were only stickers on the lower fender above the blacked-out rocker and stripe.
Grant
Although anything is possible, I have never seen or heard of Formula S and 'cuda packages used together.