Highest flowing sbm heads?

Not impressed and not how I would ever run my program......far as i'm concerned only an idiot would brag about not pulling a valve cover in 4 years to ever check for potential valve train issues....you seem to be impressed by different things than I and most of the racing community are.
Its your money and you can spend it the way you see fit. And yet its gone 2600 passes without blowing up.