Like the titles says.
I have a 2008 G8 6.0 219/223 .625/.625 112lsa cam

I have it idling good. Starts great. My issue is when the engine and ambient temp is around 60-90. If I start the car and wait around 20 seconds an put it into reverse it dies. My base airflow table is pretty spot on. Would I need to modify the ect table under the final airflow table?