Large cam (btr LS3 stage 3) tuning, need some help please.

[bstuder11]

So I installed a BTR LS3 stage 3 cam in my G8 GT and obviously I need to make some changes with my tune but I have not done any tuning for this kind of swap. Most of my tuning has been on forced induction engines for fuel and spark or simple torque management kind of things. When you first go start it up and it’s cold out it will fire right up And idle fine but then after you drive it a little while it will die when you come to a stop so you have to Two foot it and if it does die it’s very hard to start; it literally turns over really hard like the battery’s low almost even though it’s not and has a brand new battery and it doesn’t want to stay running. If you come to a stop put it in park and slowly little off on the Excelerator you can eventually get it to sit there and idol on its own but like I said I know this is common and I expect to have these issues going to such a big cam but I could really use some help on what parameters I need to adjust and how I need to go about adjusting them. If someone happens to have a tune for the set up since it’s very popular for this car or this engine even and would not mind sharing it with me I would also greatly appreciate that obviously. I would however like to learn from this also so I’m not just looking for somebody else’s work. I’m also pretty used to turning speed density non-MAF and non-02 Stuff anymore with all of the forced induction stuff that I do so I know there’s probably some airflow things I need to adjust for the math and I’m getting codes for the map sensor even so again any help you guys might have from experience with this would be greatly appreciated