Inline fuel pump info to help hot start issues?

I run an airtex as a boost pump while I'm at the track to feed my carter mechanical pump with a dead head 6.5 regulator. With the electric pump off the mechanical will pull fuel though the pump, as in normal street driving. The electric is nice to fill the bowls after a jet change. I've insulated my fuel system and don't have hot start issues.
Airtex External Electric Fuel Pumps E8012S