Check this thread:
SKIP FIRE AGAIN
Not many guys run EFI so info on that sensor is pretty limited as the carb models don't have it. You should be running 180-230 on the oil temp, although head temp should be higher I'm not sure exactly how much higher but I would think 320-350 would not be unreasonable on a hot day.
Nomad used to run a dog with EFI and I would have to say he would be the most knowledgable on this subject.