I'll attest to Jeff as being an outstanding guy to work with, super nice, honest and sincere. Beyond the manifolds, he is an amazing sheet metal fabricator, like WAY over the top. I have two of the very first units for the L92/LS3 heads (in fact they used my heads to model the intake flanges for the cnc cuts). I don't have any power figures yet, but when we flow tested them relative to the stock L76 style intake (in conjunction with my ported heads), they flowed a bit better. What is important to note beyond that though is that the runner length on the PMC unit is shorter than the factory style units, which helps the power on the top. LS based motors don't mind rev'ing at all so this is nothing but a good thing. Would be perfect for forced induction engines too.
Nice to see other folks agree with the quality, nice pieces.
Mark
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