Lingenfelter L250090309 Lingenfelter C6 ZR1 Corvette Supercharger Pulley 2009-12 v1.2 - Manual (Page 11)

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32. Raise the vehicle with a vehicle hoist or
a jack and jackstands. Be careful to follow the
GM lifting procedures on the ZR1 Corvette due
to the carbon fiber aerodynamic components
being easily damaged and the low ride height of
the vehicle.
Do not place the jackstands under the
suspension or the engine cradle since you will
need to be able to lower the engine in relation
to the body of the vehicle.
10.
30. Disconnect the ignition coil electrical
connectors from the ignition coils on the left
side of the engine.
31. Disconnect the purge line from the purge
solenoid on the left side of the supercharger
front cover.
29. Disconnect the ignition coil electrical
connectors from the ignition coils on the right
side of the engine.