Nice!
Z=man. Does your parts book have that page?
The dealer in Livingston NJ had a part book supplement for the '67 Barracudas. Mostly with trim and stuff like this that was different from the valiants and darts.
I think the one Kieth posted is a later revision of the 67 parts book and includes that stuff.
Looks like the regulators you need were only used in the convertibles - at least that year....