Quote:

what do we know about these? raised ports Iv learnt about & not much in manifolds available, they say the flow very well but most aftermarket heads do compared to an iron head
anyone using them?

a pair of bare casting has poped up for sale here quite cost effective, just weighing the options


Yes, the design of the Stage VI is pretty good. But like was mention, its a crap shoot and you want a good head/machine shop to look them over before you buy them.
Headers are available for these heads from TTI. Bare castings always seem like a good deal, but add up everything thats needed and it really does'nt pay to buy them, usually.