Originally posted by igo4bmx
no
iexcess pressure is pulled out of the head via the intake tube hole... whcih creates the necessary vacuum to do so
Go read the service manual, it has a pretty thorough description of the flow of vacuum.
Air comes into the head via the valve cover, and exits at the PCV valve under the intake manifold. Which is why that big black catch can is on the back of the block.
Unless you really think that there's somehow less vacuum in your intake manifold than your intake. :eh: