There is a lot more to it than just the heads. I've tested multiple set ups and know that the icl of my cams helps my top end, so does the frpp intake, and especially so does the 3.701" bore the Big Bore Boss block provides.
I can show you some datalogs but keep in mind they are from my motor with my values for the tune info.
IMO forced induction doesn't need as much help with airflow because the air is being forced into the cylinders. A pd blower gets help from a larger tb. A centri or turbo force air into the tb so it's not as important in that respect.
Here is the uncorrected, actual power made:
Here is a datalog that shows airflow with that setup:
Airflow didn't stop climbing. Max rpm was around 7100 rpms. Max airflow was about 47lbs.