I will know more of the port alignment, port size and overall quality of the manifold when I have it in my hands. That being said I have had my hands on the Edelbrock LS version of this manifold. It is a course sand cast manifold. The runners are absolutely rough as can be and lots of casting flash. The china knock off looks like it is foam cast. Externally atleast it looks much less granular and smoother. Edelbrock wants over $800 for the manifold and fuel rail. For $368 shipped it was impossible not to order one to atleast check it out.
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This is a picture I found of the Edelbrocks internal casting.
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