at around 15 PSI u hear a loud hissing sound and my car jsut stopps moving...but if i go to 13 or 14 PSI my car rockets it happened when i removed the OEM BOV tube and pluged both holes the BOV and the BOV tube went in to.

could it be my GReddy GOV thats doing it or could it be my wastegate doing it?? im thinking abotu tightning my BOV a little to see what happenes...