Can we install the ALLOYTEC V6 CAM PACKAGE into a VZ Adventra? Is there a tune available for the Adventra and the AWD system?

Yes, we can. Whist we do offer mail order tunes to suit Alloytec engines (like the one found in your Adventra), we don't have mail order calibration/tunes to suit our larger cams, however HP Tuners do support this vehicle so you could get a custom tune done if you wanted to. However no one can reprogram the 5 speed automatic transmissions on these alloytec engines along with the Holden AWD system.