Definitely stock boost.
Tuned is a handicap if this is your first time on track. I can write paragraphs explaining why, but all will be explained your first day on track.
You will not overheat if this is your first track event, as long as you have the factory oil cooler installed.
Remember, focus on being smooth. The PROcede's smooth power delivery will definitely help. If at the end of the day, you feel you can do better by adding more power, it means you're not picking up the right lessons
Hope you're getting instruction!
Have fun!
Here is my thread of me running stock boost using the PROcede. Note that I was faster while running much less power. I still have a lil more to shave before I need to turn up the boost.
http://www.e90post.com/forums/showthread.php?t=473177