I am considering the Stage 2 as well as I really want that 340 lb-ft of torque.
I think this is the penuntimate thread on the subject, but there are more.
GM Stage II Kit review
Read this entire thread and I think you will feel you know about everything there is to know about it... Flash's Owner is a GM engineer and his ultimate endorsement is that he is not hesitating to get it for his wife's new coupe, after having it on his own roadster. That is about all the endorsement I need.
