[Rebel1]

Mike, why would you want to run two walbro pumps?. Why not the Bosch 040 which is advertised as below? :

In tank 600hp fuel pump 040 model

This pump is a Bosch K-Jetronic pump which is capable of pumping efficiently at high fuel pressures and suits high boost , high flow applications. It has a built in strainer on the base of the pump and can usually be adapted to suit most in-tank applications. It is commonly called an Audi Motorsport pump by people in the trade. It has similar physical dimensions to the external Bosch motorsport pumps but is a little shorter.This unit is the In-Tank version of the Bosch 044 Motorsport Pump.