I have an isssue with my super charger! I have a 97 gmc sierra with the 7.4L in it with a whipple supercharger added. I had recently took it to the shop to get the intake gasket re done on it, when i got it back it sounded like a bag of rocks in the back side of the supercharger, just at idle. The mechanic told me he contacted whipple and you guys told him it was normal and it could get louder!!!!! If you could help that would be great because i dont know how it could get any louder and still be drivable and i really dont want to tear into it if i dont have to. Thanks