brammer is'nt running 800bhp and stupid amount of boost to get it though is he?

what i'm saying is he needs to return to below oil level and not to the block, if a one way valve needs fitting to stop blow back on bigger bhp engines then i've learn'nt something new but you would'nt return to the block and fit a one way valve, would you??? you still need to return below oil level.
are you saying i'm wrong??