[s-cars] Pressure test for Vacuum Leaks?

[David Forgie]

Jim:  Here is a photo of an ABS plumbing screw in cap modified to remove the threads and to add a
 Schroeder valve. (Tom M's photo)

http://12v.org/urs/4Driver4sBoostTestCap.jpg

Here is one suggested test method (others might disagree):

http://forums.quattroworld.com/s4s6/msgs/29530.phtml

HTH 

Dave F.