I'm getting a vacuum gauge and am curious as to which vacuum line I should stick the T-fitting into to ensure I get a proper reading. If this was a piston engine, no big deal. But, since the rotary has a butt-load of vacuum lines, I don't want to take any chances. And, I am still learning about these things.

'85 GSL-SE w/13B

 

bump

 

I take mine off of the intake runner, but I don't run stock intake or carb.

 

just hook it up to any OPEN vacuum fitting (no valves or solenoids) and F.Y.I. all gsl-se models are 13b

 

Telling me to "hook it up to any OPEN vacuum fitting" still doesn't help me; not specific enough, when I said I'm still learning about these things. I've provided a picture of the 13B vacuum diagram. Would I splice into the line that is colored red? I've also provided a picture of my engine if anyone wants to point out exactly which line to tap into.

 

There appear to be three lines marked "manifold vacuum" in the diagram.
Use whichever one is most accessible for the Tee fitting.

 

Tee into either the blue or green line on the passenger side going to the intake manifold.

 

Thanks, Trochoid. I greatly appreciate it.