Misfire detection on the standard LS7 ECU (circa 2007)

I am installing a modified LS7 into my road and track project (not a GM car) and am using the std GM ECU.

I want also to install the RaceLogic traction control system which uses independant wheel sensors and will momentarily cut injectors when wheelspin occurs form any wheel.

The problem for me is that some independant engine builders have advised me that the GM ECU has misfire detection. What I need to know from an expert, is:

Will the ECU go into limp-mode on misfire detection, and at what threashold?

Can any one give me a definative answer, beciuase I am getting conflicting reports?

cheers

keith