Engine Dieseling - Options?

Somehow I read it that you have 11.5 to 1 compression. Then I reread and notice it's probably 10.5 to 1...
I retract my initial diagnosis after rereading and agree that it's likely not an octane issue but the tuning issue..
"Assuming" you have the correct torque converter.. but that much duration in your cam it's going to sound super cool idling at 900 or 850... But it's not good for it..