Originally Posted by Brian Carlton

Nothing goes in the #4 and #5 holes.

Don't attempt to reinvent the wheel. b goes to the transmission and it is not under full vac. The orifice, #63 limits the volume to the VCV and the VCV regulates the vacuum to the trans by bleeding a certain amount depending upon the rack position.

The #62 orifice simply restricts the volume to the circuit downstream. It's probably used to prevent a massive vacuum loss if a hose is disconnected or it cracks.

I strongly recommend that you eliminate the line that plugs into #1, eliminate the line that plugs into #2 and eliminate the line that plugs into #3. Much nicer underhood environment.