If you don't have under hood inspections, and it runs good, I personally would not worry about some of the vacuum connections. So long as the dist is getting vacuum, and the heater/A/C and the tranny and brake booster are getting vacuum. Getting it back right can be a headache.

P.S. There were some early California models with a computer controlled system on the 351w. If your distributor does not have a vacuum line connection, then you do have one of these systems, and I would recommend converting it over to the regular non-computer setup.