I'm teeing one vacuum source off the manifold for the fpr, bov, boost gauge, and 3 bar map sensor. I think this should be okay?

 

It will be fine.

I would definitely recommend a vacuum manifold for two reasons, though. Firstly, you get a better vacuum source since you are tapping into the brake booster vacuum line and secondly, it will look much cleaner and make diagnosing problems easier. For $30, it really is a good investment.

 

also keep in mind that those cheap plastic tees dont hold up to heat and age very well.

 

Yea I found out the other day when it was on the dyno. Brass fittings are the best