Do not tunnel vision the problem. It may be fuel, or it may not be. So check things out. Do you have ample fuel to the pressure regulator? After the car dies, does it start easily or with some difficulty? If it starts with some complaining or not at all then pull a plug and see what it looks like. If it's dry, then you may a fuel delivery problem. If it's wet, then mostly likely you don't. If you're not getting enough fuel it could be as simple as replacing a badly clogged fuel filter.
After figuring out if you're getting fuel or not, then you've got to look at spark. And after that air. It's a process.