8 INJECTORS REPLACED NOW LEAKING FROM VALVE COVER
 

I installed all 8 injectors over the weekend in a LLY and now we have a bad fuel leak. After looking at this very closely and checking all line connections and injector clamps and finding now fuel leaking from these areas, Looking at the back end of the left side valve cover there is fuel pulsing with a spray out of the lower back corner of this area. Could there be a bad crack in one of the injectors and if so how can we tell which one on this left side of the engine? Calling the injector supplier today about this may shed some light on this but if anyone has any ideas let me hear what you think.
Thanks