a little idle help when transition from park to reverse and when a/c is turned on

[kbturbo]

I got the dreaded avalanche back today 2012 turbo avalanche with a tooley stage 2. I have the startup and idle nailed down pretty well except when going from park to reverse or drive. it will drop down to 400-500 and sometimes stall. it also does the same thing every time the a/c compressor cycles. its almost like it's not adding airflow quick enough to catch it and keep it around 950 rpm any help is greatly appreciated

[Lakegoat]

I looked at your tune and it looked like the Base running airflow is a little low in those areas and maybe the idle timing is off. LOL---just because you didn't post your tune and log.