[RarlyL8]

The plug marked "B" in your picture on past #6 does look like an a gauge fitting. It should be removed and the proper fitting put back.
The adjustment customization labeled "A" in your picture is for cold pressure only and is typically an indicator that the WUR is failing. There is no need to change CCP specs on a properly functioning WUR.
930 CIS does not compensate for altitude, that is done using the idle adjustment screw. If your altitude changes significantly, which is not a normal thing, you may need to give it a tweak same as you would for a carburetor.
964Turbo CIS does compensate for altitude. The -160 and -164 WURs have an extra diaphragm that sees atmosphere and deflects accordingly. Using one of these will solve the problem if you live in the mountains and frequently change elevations. The CCP and WCP should be close enough for a plug and play if using a -145 fuel distributor. A tweak of specs would be beneficial if using a -037 or -016 fuel distributor.