my boost gauge show about 18 psi vacuum when at idle. when igive full gas, it is about 5 psi of boost at 5000 rpm. i watched many videos on youtube andsome of the videos say that they run 10- 27 psi. am i running the rightamount or could i getsome more psi???p.s. i don't know what kind of supercharger i have. you cant even see it!