Started tuning my Tahoe after a cam swap. 218/218 .500 Lift 111 LSA. Started with some baseline adjustments to get it running, and I'm starting my tuning process in Speed Density. Getting my VE table close, I'm noticing that my dynamic air versus desired air is somewhat close at operational temps. My IAC counts are in the 50-70 range, spark around 18 degrees. Then while idling in this state, my spark advance drops, my IAC counts go down to the 5-15 range and my desired idle airflow then sits at 5 g/s while my dynamic is still around 7-9 g/s. Below I'm posting my idle log and my tune. Any info of what is happening and how to fix it would be greatly appreciated!
2006 Tahoe Cam VE tune + Gear Ratio Adjust V2.hpt
Idle for new tune, wierd idle change.hpl
BTW, this change happens around the 3:20 mark (minutes)