AWOL:
This isn't a street car, is it?
It is, yes.
pluggy:
The usual way of dealing with fuel heating is to run the pump flat out all the time and have a pressure relief valve that dumps the excess unused fuel back to the tank possibly through a fuel cooler. Its much more likely to overheat sat almost static in the fuel rails.
I have to disagree. Running the pump at full will just cycle the fuel through the fuel rails much faster. Fuel cooler or not it's more fuel being cycled which brings more and more heat into the tank. My setup is a return style to begin with. The feed runs to a bypass regulator which has a line running to each rail and a crossover in front. That alone limits the fuel circulating through the rails. Running a big pump at near stock pump speeds will reduce the heating more than it will if the pump is running full tilt.