Vacuum tube placement?

[atsomepoint]

Ok, i'm back. My car has been running pretty crappy as long as i can remember so i finally checked the timing, (shouldve been one of the first things i did) and it was like 10* off, so i readjusted it and now it runs far better.
Only concern i have is now there is an odd vacuum noise whent he car is running. Loud enough i can hear it over the engine in the car.
Checked it out and the sound is coming from the heater core vsv that you told me to plug into. I tracked the suction back to the where the cruise control line T's and enters the intake manifold.
Is this supposed to be happening or do i have reason to be concerned, and what can i do to fix it?

Also, this is all assuming that ive understood correctly where all those vacuum lines should go