As the title says. New LS3 crate engine, GM 219/228 cam, CAI, M6. Everything else bone stock, even exhaust is stock. Its pings severely and is audible, not false knock.
The car has 93 in it, I suspected the fuel and have tried two different stations. I have tried taking timing out of the stock timing table and richening up the PE table and it still pings.
The car currently does not have a wide band, which will be installed later, but I thought I may be able to get it close without one. The NB 02's show that the car does richen up when it
goes into PE. Is it possible the stock exhaust is restrictive enough to cause this?