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  1. RPM / PSI boost issue

    Picked up a used Raptor. I have a feeling I have a boost leak. I get no boost until I really punch it after 4k RPM’s. Is this normal? Zero psi at all the way up to 4k!? I thought the ProCal would wake it up and nothing. Decided today to check the boost finally. With the procal tune ford says 536...


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