Highest flowing sbm heads?

Mean416 said
I've looked through the head flow pages, and generally noticed, there's no heads out there that significantly surpass 300 cfm.

What's the highest flowing sbm head, that's not some exotic thing requiring a race block?

What would a max ported W2 head flow?

Just curious because I have this stroker 418 short block, and if the best head I can get flows 300 ish cfm, then the most NA power I can get is 600ish, right?

The problem here is when you want a higher flowing head your probably really getting into a bigger port which may or may not be good dependent on engine size and goal of the engines power. Also the components being used is another issue.

Even a cylinder head that flows 260-270’s is a powerful head but is often used in a heavy car and a slew of other things not well suited to allow the power to be released to show its potential.

What is the goal being sought?
What does the rest of the build look like?
Cam, compression, etc….

Nat said
happy dyno ??

I think so along with a happy flow bench. Very happy.