Lingenfelter L250110309 Lingenfelter C6 ZR1 Corvette Supercharger Front Cover 2009-13 v2.2 - Manual (Page 14)

Page 13.
42. Remove the PCV dirty air hose line from
the passenger side of the supercharger.
43. Remove gas cap from gas tank.
41. Inspect the supercharger insulator seals.
Replace if damaged [GM part # 12609472].
44. Bleed the fuel system pressure to 0 psi at
the service test port on the driver side fuel rail.