Details of pod filter installation.

I got a bike with pods, now I have to solve problems:
there are 3 problems with pod filters:
1.I guess, 5th filter is needed for air, going inside engine block.(?)
2.what to do with blow by gas, coming from oil separator?
3.Should vacuum hose running "vacuum valve" still be connected to intake manifold?

You don't really need a crankcase breather filter. Some guys just run a hose from the crankcase down the side of the bike to the ground.

Number 1. I used this. www.oreillyauto.com/site/c/detail/SPT0/3...=crankcase+breathers
You will have to use a drill bit or razor knife on the hose that slips over the nipple to get it to fit. It comes with the hose clamp so it won't come off and they have different colors also.
Not sure about th other 2 question cause my bike was already done when I got it. Sorry.