Here's another thought. Maybe the intake tube section installs before the MAF, that would put PCV takeoff in right spot. Why does MAF have to be so far away from throttle body anyway, I would think better to have it somewhat closer to body. That column of air that's already metered after MAF is sitting there dead until throttle plate opens to activate it. Meaning MAF will hesitate slightly while column of air stirs up enough to move. In my view MAF should have draw on it as soon as plate opens for quick response. But then that's the ex-dragracer in me talking.