If you are getting your temp from the scanmaster it gets it's temp reading from the sensor next to the thermostat. It is got to 230 then the thermostat should have opened and let the bubble out. I fought temp issues two summers ago and finally won the fight last spring. From what I understand the fan is told by the ECM to turn the fan on when the temp reaches the chips set point. So it sounds to me like either your relay, fuse or fan is fried. If it was me I would first check the fuse then Hotwire the fan and lastly check the relay. If you are still running the factory radiator you probably need to pull it and install an f-body radiator. $100 for the radiator is a great deal cheaper than replacing the motor. My temps went from 210 to 165 with the radiator swap. Other than the Alkycontrol it is the best money I have spent on the car.