RE: Spitfire thermostat

[rghoff@bb1t.monsanto.com (Home for the Holidays, its your turn to take out the trash)]

        It may not be the thermostat. Could be the sending unit from
        the block or the guage. Check those.

        Another cause could be the voltage regulator for the dash
        componants (I think it's called a voltage regulator).

        You could always pull the 'stat out and do the boiling water
        on the stove routine just to make sure your new one is good.