Alright, took a look under the engine bay, I have a couple things missing I beileve, does anyone know what goes here? There are 2 pics, I dont have Air/Egr and I cant find the PCV so im sure it goes to one of these or something. Its a 98 LS1 and if anyone has diagrams that would help too. I also see the passenger side valve cover has a cap where a hose can be placed on it, guessing for PCV. Thanks

 

Nipple on the driver's side supplies vacuum to the charcoal cannister purge solenoid. I moved the wiring out of the way for clarity:



The other is for the PCV system. Pic:



Pic of diagram from my manual:



There is no master vacuum diagram, just diagrams of each system and they are pretty lame, a bunch of them are broken up into chunks. BTW I got my manuals off Ebay for ~ 37 bucks, excellent investment. There is a set on there now for 40:

http://cgi.ebay.com/ebaymotors/1998-...spagenameZWDVW

# 310009065971

 

I have a couple underhood pics I took before tearing into my '98. Maybe you can zoom in and get an idea. I'm new here, not sure if I can post pics but I'd be glad to e-mail them. BTW, I ended up just dropping in an LS6.