Idle overheating

hello, i have an 02 190k Z71.

i live north west texas, triple digits weather daily, my 02 av overheats on idle after 10min with ac on, over the last 6 months i changed water pump, new radiator, new fan clutch, new thermostat, new upper belt tensioner. upper, lower rad hose, fresh gm coolant and still overheats. driving around temp goes normal, parked rev 1500 goes down normal. Any suggestions

sounds like your not getting enough air through the radiator.
Are you lifted

clean radiator fins and any heat exchanger in front. (condenser and Oil Cooler)
To ensure you get proper airflow across radiator

Check fan shroud is still good and around fan.... No shroud and fan does not pull as much air.

Check your new fan clutch as it could be bad one out of the box...
Could slip at low RPM.

Did you get all air out of coolant system?