I was driving to get gas and noticed that my car would only hit about 2-3#'s of boost at WOT when it should be hitting 12#'s and it was falling on its face badly. After careful inspection I noticed the bypass valve on the KB was stuck. After breaking it loose and oiling (to prevent future sticking) I drove it again and noticed boost was back to normal. So anyone that having boost troubles check you Bypass valve.