Congrats!. I did exactly what you did and look at me now.
What started off with this is all I want to do nothing more than just a stock procharger and be done turned into a serious rabbit hole. lol. Smaller pulley, LT4 Fuel system, LT Headers, exhaust Voltage booster, E85, etc etc.
If there's one thing I could go back and do again it would be 2 things. 1. Get the P1x instead of just the p1sc since it's only a $200 difference and 2. Skip the canned tuning and proceed directly to a good tuner locally or one that can remote tune your car and With that said I personally recommend Ted Jannetty! I cant' say enough about how great he has been to work with. Makes you feel like your his only customer..