Inertia vs Oil Pressure Switch

Both are nice, but IMO the inertia switch is sorta stupid for a carbureted car. It is going to keep running regardless of whether it sees fuel pressure. At least until the float bowls are empty. That could be a good while idling after a wreck. Of course, it would stop the flow of fuel, which is good, but if you want the engine to stop, you need some type of ignition kill. No doubt in my mind that you could wire in the inertia switch to kill the fuel pump and ignition both at the same time.