Highest flowing sbm heads?

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?
Max power levels with a W8 or W9 style head will break that engine......period......NOBODY DOES WHAT YOU SEEM TO WANT TO TRY.....PERIOD!!!!!!