unlikely that all or most the injectors are stuck in the open position? Also if they were stuck in the open position would the engine actually run? I would think that dumping fuel like that wouldn't allow it to run at all.
I guess my next question is what would cause that much leakage by the o-rings? Would a high fuel pressure be able to cause this? It seems odd that I would have that many injector o-rings fail at the same time. The car went from driving it to the next start up it was missing.