Quote Originally Posted by my97gtp View Post
If your ported it larger than the plate in it im sure you would loose boost. I dont think their are any gains to be had by porting it unless you were turbo.
lets assume the outlet(bottom portion) is ported and not the top/inlet, boost would be generated the same since the BBV plate is shut anyways. i think this would only be changed, if any, at cruise and idle when no boost is initiated.