I installed an Aeromotive Stealth fuel pump in my 2007 Mustang GT. I'm logging some WOT pulls and am seeing zero fuel pressure for a couple hundred milliseconds. Fuel cuts are disabled, traction control is disables, not seeing any spark knock and everything else looks good. Commanded fuel pump duty cycle is 100% the entire time. What do I need to adjust in the tune, or should I be looking in the fuel tank for something loose/disconnected?

thanks
CSR