Black_Vegas

I was searching for info about the stroker kit for the VQ37VHR motor and came across multiple people having a hard time tuning it. I would like to know what specifically tuning issues they came across (timing, a/f ratio, maf/map counts, etc...). I know that you have a choice between 4.0, 4.1, 4.2, and 4.5 with the 4.0 being the easiest to do, but the sound of a 4.5 with a stillen supercharger is amazing. Any feedback is welcomed.