that doesn't have anything to do with a crank sensor; its the way 360's have been built from the start both use the same crank sensor
the crank sensor is used to figure out when to fire the plugs as well as the injectors; the cam sensor is also added into the equasion to make sure everything goes as it should
to my knowledge there is no aftermarket way of triggering the cranksensor; the flying magnets crank trigger that goes on the front of an engine wont work with the factory computer
