Intake Manifold Vacuum ports

[ChiGGz]

I'm going to re-reroute my PCV to the manifolds but I don't know which ones are vacuum ports. Some of holes are unplugged...

Does anyone have pics of the manifold and where the default vacuum ports are?

Thanks

 

[smokey8667]

any port on the manifold itself is a vacuum port. The only ones you have to worry about are the ones on the throttle body, I think the only one that is "behind the throttlebody" is the one that is stamped "P", but dont hold me to that. If you want to find that out just start the car and unplug them one by one with it idling. Whichever one sucks is behind the throttlebody.

 

[fourreGsixty3]

Yes it should be on the back side of the stock IM, its a decent sized nipple, camera took a crap on me, or I would just take a pic of what it looks like.

Dustin

 

[ChiGGz]

Well I have what I think may be a vacuum hole, or just mounting holes for other things.
Should I be looking for a metal barb?

 

[brute]

The stock routing comes from the back of the valve cover right into a vertical nipple on the intake manifold...

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Now, on mine, I have it go from the valve cover to a catch can, then into the vertical nipple. Red goes to the catch can, blue is returning from the catch can into the manifold...

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If you look at the ports on the throttle body, all of them are vacuum/boost sources. I have all of mine capped except one. I use the P port for my boost gauge. I ran out of rubber caps, so I just connected two with a piece of hose to cap those off.