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?