Still bubbling out overflow after changing water pump, thermostat, radiator,hoses??

The boiling after shut off bothers me.

Any chance you got a water pump for a serpenteen belt drive engine? Back in the day ford 289 / 302s had a vbelt drive that rotated the water pump in the same direction as the crank, the serpenteen drive 302 had a water pump that ran in the opposite direction. both would bolt up to the same front cover