I soldered the two wires together that go to the hobbs switch. This way has increased voltage going to the pump at all times. I ordered mine from Brenspeed, and that's how they tell you to do it. I called them, and talked to them about it, and they said they've wired thousands and thousands of mustangs this way with no problems. As for the ****, I just keep it turned to full power all the time.

 

I just relooked at my FP wire and it is more like a 14 or 16 ga. (maybe a difference in years or flex fuel). I have more than one gray wire going to that fuseblock. You may want to verify you cut into the Fuel Pump relay gray wire and not a light, cooling fan, or other gray wire.

And BTW kudos on your underhood housekeeping.

 

Seems that my pressure switch was not working.
I got the 2 wires together now and it works awesome.
at idle i can turn it up from 61 to 65 psi now.

Thanks for all the help guys.