The best and safest thing you can do for your engine is to run the water/meth injection. It will eliminate your ping. I was king of the ping at one time. That completely cured it. Same thing with JT72, tons of ping cured with the water/meth injection.
Take the car for a drive, and in third gear hit the throttle all the way down. Post your boost and air/fuel readings at peak. I am wondering if you are getting some boost creep
there. As Clear said, you should not be boosting more then 8 psi.
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