this economy gauge
The center pod had 4 different variations in the same hole.
My 67 Non-Formula S Commando 273 4 Speed had the vacuum gauge.
I parted out a rusty 68 FB 225/904 that had a 150 speedo.
My 68 318 had the blank plate in the center but I swapped in the vacuum gauge.
My 69 A56 cuda340 was ordered with a 340, 4 speed, 3.91 factory S.G. and a clock in the wood-grained Rallye dash! Clock? In a car born to run? Go figure. Also has the 150 speedo and standard split bench seat.