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not sure what you mean, but if you disconnect the vaccum hose from the wastegate actuator it's essentially locked closed and mid 20's psi is possible...mine hit ~25psi like that, others reported even higher.
 

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IIRC, it should be around 8 psi with the stock exhaust. This would be your base boost pressure before any augmentation via a VSV or other type of boost control. If you're running a full exhaust, it may creep higher.
 

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I'm still learning
 
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