Vacuum line question

[Rocketman]

So, as I hinted in another post, I have a question about vacuum lines.
I was poking around at the intake runners, and found that runners 3 and 4 (middle runners) are connected at the vacuum port by a line that runs across the valley, and "t"s in the middle to head upwards into the unknown.  There was also a "t" that headed aft, but that line was capped off.  I've only had custody of this particular Valkyrie for ~6 months, so I'm not sure what has been done to it.  My previous Valkyrie had all these capped off (using a non-vacuum Pingle), but I'm not sure which is right, and where this vacuum line could lead.  No, there's not an AudioVox cruise on it.

Comments?

Mark

[Rocketman]

OK, I found the answer to most of my question at:
http://www.valkyrieriders.com/shoptalk/AirBox%20VentHose/venthose.htm
So the vacuum line runs to the pair valve, which my previous Valkyrie was lacking.
The remaining question would be why is there a separate branch that was capped off, but that's a lot less important.

[RoboCop]

from the manual, hope it helps.