Need help identifying a fitting on my FFIM

[Mo87NA]

I posted this in my build thread, but I figured I would have more luck here.

The manifold is a Ron R. unit with an ISC provision. There is a welded AN fitting beneath the 'HKS' elbow which has got me stumped (right before the throttle body). I have no idea what it's for. It sits right above the alternator so I doublt I'll be able to utilize it anyway.

Any ideas?

 

[SC61 MK3]

Maybe to run a line from the crankcase vent system for the vacuum source

 

[Mo87NA]

That's what I was thinking, but I'm not positive.

Maybe someone with the same set-up will chime in.

 

[shipkiller]

power steering idle up?

 

[Mo87NA]

Could be, but the idle up for the power steering is a pretty small line. This fitting is at least a -6.

 

[Poodles]

Usually, that's used to hook up the a vacuum manifold for items that need vacuum (the stock setup uses a fitting on the front of the intake manifold)

 

[Mo87NA]

Thanks, Poodles.

There honestly is not much room between the fitting and the alternator as you can see from the picture. Theoretically speaking, I could use that fitting to connect a vacuum block for additional vacuum sources correct?

 

[SC61 MK3]

Yes sir