Looks like to me trying to let the original poster know I had a set of the same head and I thought the numbers produced were good has created a lot of unintended strife.
When you’re used to looking at flow numbers pretty much daily, things that don’t make sense really jump off the page.
Equating flow & pressure data from a particular set of heads probably isn’t as easily relatable to the average Joe as say...... some HP figures.
If you said, I have a home built dyno and I tested a 100% stock 340...... and it makes 600hp...... that would jump out to pretty much everyone on this forum.
They would know that just isn’t “correct”.
So, when I hear 296cfm@10” from a modified factory Mopar SB head....... it stands out to me as much as the 600hp stock 340 would.
I just know it isn’t “correct”.