If you have a pin protruding through the strut mount amongst the 3 studs in the engine bay, you have the camber plates. Ford installs set screws to lock them in. To remove the set screws, there is a procedure for that. First verify the pin. If so, follow these threads borrowed for the GT500 sub forum. The pic is NOT of a mach1 but is similar in nature.
They are factory installed on Mach 1 HP’s. It’s likely you have the set screws in place which may have confused someone trying to do an alignment. As mentioned above you should see a pin. From the factory that plates have that pin. If you order them later (like in your pic) from a dealer they do not have a pin. I’ve got a set of HP plates sitting on the shelf in case my Steeda plates get noisy.