PCV question

[AZCOWBO]

I need to add PCV valve(s) to eliminate pressure and oil blow back out of my breathers. My questions are considering I have dual Demon Jr. 525s. and running approx. 500HP:

1. Do I need one or two since I am running 10.5:1 compression?

If I go with one, does it matter which side I install the PCV breather?

2. If I go with two, can I T both of them into the rear carb only or do I need to run one vacumn line into each carb, which I may not have enough room for the front one.

3. My Demon's have a pink cam and someone told me for street, I need to change out to a white cam.
Any comments on this?

 

[VegasBruce]

You shouldn't need more than 1 pcv. If your putting it in the valve cover, it should be opposite of the filler. This sets up a cross flow. Mine is in the intake under the coil to hide it, and the filler is at the front of the intake. I don't have any holes in the valve covers.

 

[RPM]

1 PCV will be plenty. In the valve cover is fine. Just make sure you have a good baffle in the valve cover or that PCV will suck oil out of the engine.

 

[Lee_in_KC]

Here's one of the best explanations of PCV I have come across..

PCV explained

 

[AZCOWBO]

You shouldn't need more than 1 pcv. If your putting it in the valve cover, it should be opposite of the filler. This sets up a cross flow. Mine is in the intake under the coil to hide it, and the filler is at the front of the intake. I don't have any holes in the valve covers.

My breather's on both sides are my oil filler. I have no filler tube.