Ok, Thanks RB. 600 brings the black from the coil to the connecter/plug. Once inside the firewall the wire is then green and plugs into the power stip. It is marked 'tach'. With the engine running it shows 12 volts, not running 0 volts. The blue wire from the fuel pump shut off safety switch is plugged into the powerstrip directly across from the green wire marked 'tach'. Im guessing, but my understanding is if the motor quits running, then no voltage is supplied to the blue wire, thus no voltage to fuel pump.
Does this sound correct to you?
KB