4/9/2018 Update: I put a meter on the power line from the relay to the fuel pump and when the ignition switch is "on" the power line shows 12 volts and the fuel pump is running. Once I start the motor the power line goes to "0" and the pump shuts down. I have already replaced all the components, the pump, relay, oil pressure safety switch, the wiring has been triple checked. I will now research how to test a holley 12-810 oil pressure safety switch to see if they are in fact bad. Thanks, Paul 6T9RR