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He is using a copper sprayed stock composite head gasket. And a lot of torque on the ARP’s. The sheet metal intake manifold stayed on the shelf cause he wants to build a better one I think. And yes he is pushing the hell out of that turbo, the compressor map ends at a 2.8 PR, 35 PSI is a 3.38 PR, assuming we are getting a full 14.7psia, which we are probably a bit short of.
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