Curious what is your base idle is set too? I have a similar setup and mine would die when finishing a drag run or getting off the interstate onto the exit ramp. I rectified my issue by repositioning the air filters to prevent direct air flow and I raised my my idle to 900 rpm. On occasion it might still die or try to die but 99% cured. I would also clean your IACV Just for reference I did a PCV delete and plugged my cam covers and turbo inlet. The hose than runs from the intake cam cover to the turbo intake was replace with a longer hose and vented to atmosphere using a small filter until I have time to install a catch can. My car is also rich during idle but this might be common when having a high performance engine. I am sure others will share their thoughts to this concern. Good luck with your tune!
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