I guess its turning up had something to do with the new software for the BBS. The Gates works in strange and mysterious ways, my child. But if you're still having the problem, what does it matter?

Have you checked both your pickup line from the tank and the return line? A restricted pickup screen would have a double effect; it would reduce the flow so that you wouldn't have as much cool fuel passing through the engine compartment, and the reduced pressure on the suction side of the pump will make the gasoline boil at a lower temperature.