Highest flowing sbm heads?

No reason to learn more about them if your still stuck on being a unicorn and insistent on breaking/ruining the engine with a stock block. Big boy heads require big boy blocks.
I don't understand why you are being so antagonistic towards me, I haven't been rude or disrespectful to you or anyone here. I'm not trying to be a unicorn, there's just an abundance of evidence to suggest that my well prepped stock block will be fine as long as I'm running a fairly conservative tune. So I figure why not research appropriate parts to achieve max power levels?