Steve, the few things that I see that would concern me are the plenum size looks small, the entry angle looks like it would not match the angle of the port in the head, the runner in the manifold appears to be straight and not tapered and I usually like to have at least 5/8 of material around the port at the entry in the plenum before any kind of wall is there. The runner also looks quite short. I understand that you are dealing with room constraints but those are the things that pop out at me from the couple of pics you posted. Hope some of this was some help to you. Dan
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