Anyone know what this vacuum hose is supposed to connect up with? It's coming off the port that screws into the intake, on the other side of the PCV hose. I'm assuming this bolt plugging it up is not OEM. 1977 CA motor with thermal reactor and most / all smog equipment. I have the 77 emissions guide and both FSMs, and searched the annals of Mud, but haven't found it. PCV hose comes in on the right.
Thanks to everyone in advance!
Thanks to everyone in advance!