I am fairly new to the 3800 scene as well. Welcome to the forum, the people here are great and can help you out so much. I pretty much have the Stage 2 package myself. I just had my parts installed about a month ago. As far as the power goes I can feel a NOTICEABLE difference but I WANT MORE. My issue is that I want to keep my car as a DD and just as reliable. A lot of people suggest that w/ the 3.4 pulley that you keep an eye out for
KR. I just ordered aeroforce scan gauge to help out. Good luck w/ the install. Feel free to ask any ?'s.