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Your only gaining 22* in boost. I'd say your intercooler is fine, you need to lower the temp of the air going into the turbo. You can't suck hot air and then expect to cool it off very much.
Stock48 took a stock headlight and cut the high beam out and then made a flex hose and funnel to fit the opening out of PCV so he gets ram air strait into the turbo. He thinks it's worth about 2-3mph on his setup.