i know this thread is old.. but i feel good info and more to be had now for people doing searchs.

when running the ls6 valley i saw where they cap off the entire old pcv set up. where would you set the catch can? inbetween the line from valley to intake manifold?

also what if you wanna run a filter in place of the oil cap? what if you ran filter on both sides of the valve covers and then a catch can with the ls6 valley cover?

 

I would like to know also. i may run one on my LS1.

 

You would have to do it with out a Maf. Other wise you would have unmetered air getting into the intake. But yes you go from the valley to a catch can then to the mani. You can also run both valve covers to the intake tube post Maf. It would be the same as a filter on both but you would have metered air into the intake.

 

x2

 

Why would I have to do it with no maf if I put a breather on each valve cover. Then ran a ls6 cover with a catch can to the intake
Manifold?