[LSX-Nation]

After my car was dyno'd at dyno day, a few people told me it was pinging up top,( i believe pizza was one of them ). Im planing on getting headers in the near future so i was going to wait till they are on to have Don tune it for me. Today i was cleaning out the garage and i found a little box that came with the car. I just put it on the shelf and never opened it when i first bought the car a little over a year ago. What do you know i found a predator tuner. A few people said if i lower the timing it should go away. I might as well lower the timing with that thing. Anyone have a idea on how many degree's i should lower it? Btw car made 310/320 with a AFR of a average of 13, its a pretty straight line across the board so i think that's ok.