Im curious as to why would you even say that as if it were relative to this guys combo he posted. It IS easier to get exhaust out than it is to get a/f in. Seems such a random irrelevant thing to say when you could just remember that the heads flow less when the intake goes on... and say its not port matched too, darn....now the once 230 cfm is now...205, maybe.
The reality is...you could take even a stock mill, pull the heads and port them, slap them back on with the same exhaust manifold and it WILL make more power.
