Get the fuel pressure checked. I had a car a few years ago that had cracks in the gas tank tubing inside the gas tank that came off of the in tank fuel pump. The fuel was spraying back into the tank and not getting to the fuel rail. Once started it seemed OK unitil I got to highway speeds and then it would start missing as if running out of gas, which it was.
"The American Republic will endure until the day Congress discovers it can bribe the public with the public's own money.
- Alexis de Toqueville, 1835