Highest flowing sbm heads?

I sure do and so does 90% of every other high power high rpm engine owner.
I love it when the trolls come out....so since there are soooo many self proclaimed "super" engine builders on this site I WILL WAIT to see proof of your 8k rpm plus N/A pushing 1000 hp builds that perform at that level and last.......SHOW ME EXPERTS......I WANT TO LEARN