If anything I think you should be seeing more than factory boost unless something with the wastegate is borked, or you have a gasket leak…Did you replace the manifold to head gaskets? I had a similar issue with my old car and it was uppipe gaskets.
If anything I think you should be seeing more than factory boost unless something with the wastegate is borked, or you have a gasket leak…Did you replace the manifold to head gaskets? I had a similar issue with my old car and it was uppipe gaskets.