Highest flowing sbm heads?

Brett Miller has a CNC program he is working on. They are beautiful. The heads he hand ported made 940 on a 400+ inch nitrous motor without nitrous. Brian at IMM has a customer who also runs nitrous and his motor makes great power (I forget how much exactly) but it was impressive. I bought mine because they were cheap. They are at IMM getting flowed now.


I thought the set he was working on or did were the moved centerline or whatever they called it.