I replaced my fuel pump with a holley 190, the tank and the filter 6 months ago. since then I have been restoring the 89 5.0 lx. so it has only been driven about 10 miles. I finally have the car done and an I put in 5 gallons of fresh fuel(guage reads 1/2 tank)and went for a ride to the autoparts store and back home. After about 10 minutes of driving the fuel pump starts screaming/whining real loud. I shut the car off for a few seconds and we are good for another 10 minutes. does not happen if car idles in the yard, just after driving. I cant believe i need another fuel pump so soon. any ideas? Could it be fuel regulator? I do need a fuel filler neck seal since i did not replace it when I did the tank. It drips a bit if the tank is full.