Highest flowing sbm heads?

Well the FB disease is what most of us have turned to. It seems to have spread us quite thin though. So many specific pages….
when I’m done with my current combo I’ll be back to stock block considerably slower combos like my iron headed 440hp “Bracket Betty” 360. That’s what I admired about Tony’s pile of engines. Lots of “off the shelf” parts and mid 10’s is ok with me :)

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