Well I don't know what year your stang is, but my friend has a similar problem with his 95 Cobra. It turned out to be the cap and rotor on his distributor.
If you still think it is the fuel pump, I wouldn't go any bigger then 190lph since your motor is stock. If you get a 255lph, then you'll just have a lot of fuel in your return line. Keep in mind, you are suppose to hear the fuel pump "whine" a little bit.
I would check out the cap/rotor first because it's the easiest and cheapest thing to do.
|