I've just completed a Subaru Turbo = conversion on my '87 Synchro. Everything came out the sweetest except that I'm = completely lost on the way that I should hook up the vacuum lines from my 4wd assemblies. Right now when I shut down the motor I get a = "buzzzing" from a check valve that seems to be bleeding down. The Bentley book calls = the vacuum reservoir. What up? Also, what are the vacuum lines = off the V-C doing anyway? Any ideas or help would be appreciated. = Along another line, my email gets inundated with info from this list. Is = this normal? Can I filter this at all? Thanx and Vanagons rage on!