I can help you. If you want a trouble-free vacuum system, replace the vacuum tubing. It's a real PITA, but it's the only way to insure everything will work correctly.
If you're asking just about the antenna there are three tubes that run to the switch, one is for constant vacuum and the other two are up and down. The switch is oriented sideways so it doesn't matter which goes where. You like have two switched. oriented sideways its the single port in the middle of a V orientation.
I will be posting a vacuum system tutorial tomorrow as I just finished a replacement of the piping on a '57.
Barry Wolk
Farmington Hills, MI
C5681126