I'd start out by zeroing out your timing sliders. I don't run the amount of total timing that you have and im on E85. Are you on pump or E85.
Looking at the timing and fuel maps in direct access I'd say that you are running way too much timing in the upper load section and it's setup way too rich as well.
Are you on the link forums? I could throw a map together for you to try if you like.
Or you can paste this one in and give it a try...
use evo8 mod1
Paste the min and max timing and Openloop max octane and min octane maps in and save.
They are in the Direct Access area.
You will need to have the ignition switched to ON to save them.
Try that and see if it helps.
Can you also log combinedFT as well please. You airflowperrev is a bit high too. but we will be able to get a clearer view of the idle surge issue with combinedft to check out.