I only have the old black ignition modules so I use a voltage regulator. I place the pump beside the fuel tank even with the bottom. When the tank is full the fuel level is above the pump. Your temps sound fine. A good test is run the engine up to full throttle for about ten seconds and then shut down completely and immediately measure temps on all cylinders. Oh I know all about Valach. I had a chance to buy the VRM 800 for $5000.00 but I did not have the money at the time.