I boght the cop triying to solve the issue but the piston broke due to lean condition, the car dident misfire bellow 29 psi, but the wideband dident read lean due to the lean condition in only one piston due to a clogged injector.

When a car misfires and the wideband reads 11.4 the fist thing you look for is spark.

 

I ran 30-33lbs stock ignition, stock plugs when I had stock turbo on race gas no missfire and when it did missfire I changed my plugs and it was good again

 

I ran 32-33 psi on my green on the stock ignition with no issues. However, the HTA 35R demands more spark than the stocker can provide, at least on my car.