that's plain mouthwatering potential right there. Yeah spray some juice before the intercooler maybe? 2.8 would be crazy. Are you saying that w/ less cfm flowing heads you'd make more power? Or just more PSI (resistance).
Correct. Remember, boost isn't a measure of airflow, it's a measure of pressure in the intake. So better flow in the heads equals less pressure, which is a good thing.
Right now, I'm running on the 590rwhp/523rwtq @ 15 PSI tune and even that feels ridiculous!