You have yours hooked up to the PCV system intake. Shouldn't have anything in it as that's where the air goes into the block. The gases come out the block below the intake manifold, thru the PCV valve and out the T bar into the runners. Only reason you would get blow by is if the PCV failed.
It would be better to install it between the PCV and the T-Bar under the manifold. You can see how nasty the runners get.
