What's this CAP Vacuum Gizmo??
Factory parts catalogue says yes, the '67 383 with single 4bbl for California had the valve.
In fact, the '67 FPC says there were different valves for different engines. Some of the difference would be in mounting bracket configuration, but that's not all of it:
Factory parts catalogue says yes, the '67 383 with single 4bbl for California had the valve.
In fact, the '67 FPC says there were different valves for different engines. Some of the difference would be in mounting bracket configuration, but that's not all of it: