LS1, speed density, mild cam, 11:1 compression, truck heads n intake, 36# injectors and shorty headers. Everything else stock. I'm having a weird issue where my timing drops way down in a few spots. It rarely happens. I'm not finding knock retard anywhere on any of my logs. I've had a knock sensor code pop up 2 times in 6 months. Clear the dtc and it doesn't pop back up. My idle timing is also jumping from 12 to 24 suddenly. I had it pretty steady at 18 to 20. Here is my tune and log.
LS1 SD, BTR WW2 cam 36#inj.hpt
drive to store.hpl