So the other day my car was getting into boost just fine. I was racing a saleen, missed 2nd, got back in to 2nd but my car didn't make any boost. I didn't hear anything bad. Blowoff valve still operates perfectly fine. I've checked/tightened all of the clamps, the belt seems tight with just a little give. The blower has no shaft play. The boost gauge reads 20 for vacuum, but will never get above 0 to make boost. Everything sounds completely normal, the car runs and drives just like it did before this happened. I'm stumped guys, really could use your input. Thanks.