Ya 600+ HP is with a turbo , I think it shows how reliable the engine is @ a 350/400 HP NA application , & ya when the pro builders get into things it can spin outta control fast , but the younger set that has grown up with these engines are pretty crafty in what they can do with these engines with little $$$, they have got me to approach things differently, but I hear what your sayin , it all looks good on paper , but it can be a whole new can of worms when rubber meets the road, then again nothing ventured nothing gained !