Six barrel vacuum question...

[IMNCARN82]

So can I put a six pack on my stock 360?    Was thinking of putting this on to play with while I wait to redu the 340 better. 

And if so, which large vacuum port do I use on the center carb?  Upper or lower ?  And that's manifold vacuum?   Or I mean pcv?

Thanks.   

R/T

[Rich G.]

Upper is a vent. Lower is vacuum.

[IMNCARN82]

So top one goes to the factory air cleaner. Bottom to manifold ?
Thanks !!!
R/T

[Rich G.]

Bottom is vacuum too.

[MOPAR MITCH]

bottom tube is for the pcv hose... that's how it's on my car.  And, I don't have that top fuel bowl vent.. I think it would go back to the gas tank venting.

[Shane Kelley]

Top one goes to valve cover breather. It's just vent for the fuel bowl.

[IMNCARN82]

Thanks everyone.  That pic helps a lot Shane.  So top one to the VC. Bottom one to manifold.  Just waiting on some dress up items before I go for this.  Will keep you posted.  As I always have questions.
Not real good with carbs. 

[Rich G.]

Bottom does not go to the manifold. It is a vacuum source . If you're not going to use it just plug it.

[Chryco Psycho]

You should use the lower tube for PCV , is is not good to run the engine without pcv , actually the pcv is what draws the fumes from the valve cover / vent line from the top of the fuel bowl .

[Shane Kelley]

The bottom goes to PCV. My pic is a little deceiving because of my PCV location on driver side VC. That hose you see goes into a tube that runs under the carbs and comes out on the other side and goes to my PCV.

[340Challman]

Off topic for just a second, Shane, How do you like your Borgeson steering gearbox? Is that the 14:1 box?

[Shane Kelley]

Yes it's the 14.1 box. It works great but when I added the longer T/A idler and pitmam arm it struggles to assist at a dead stop. If I let the car start to roll it works fine. I just rdrive it like a manual steering car. Box feels nice and tight and good feedback from the road. I also installed the set up on a 70 Challenger with a Hemi and it works flawless. I may eventually go back to stock idler and pitman.