$400 including the manifolds. I think the flow sheet will get some attention. This is why the 3500 top end is bad ass, not just because the head design is better but the manifold design is better too, especially ported. I have never had the manifolds outflow my clay entrance, but the dimple in the lower intake, modified to my spec, really helped with the direction of air
$175 for porting alone. Its not the same as the 3500 plenum that is on the store, as that was done for the 3400 gasket,not the 3500. I am about to edit it so it reflects this difference.
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