[fredmeister]

Originally Posted by 930 porsche

Fredmeister it seems like this vacum thing about the connections between the distributor to the TB is a mess. I need your expertise to guide me into finishing this project this week-end once and for all. This is definitely a frustrating subject for all of us members but we as a group should be able to come up with a solution and agreement. From the diagrams and from all of the inputs that I have gathered until now from all of you, it seems like it should be hooked up this way:

A to BOV
B to WUR
C to Port1
D Plugged
E to Port2

Nope, i said either C or E to both Port1 and Port2. As long as C or E is a port that connects below the throttle plate so that it sees engine vacuum under idle and small throttle openings. Basically split the hose that comes off either C or E and run it to both Port 1 and 2.
Without seeing the exact throttle body you have it is hard for me to make a clear 100% recommendation.
You know if it did not involve completely disassembling my intercooler to see my throttle body connections I would take pictures and notes of my set up as on my 79 930 turbo for you. i just cannot see it well enuff right now with all this gear in the way.
Maybe others will chime in to confirm. Check out jacob's post above it explains what i am saying.