purple turtle

Ok guys I bought a 1998 formula from Washington I live in texas. Any ways the car showed up Thursday night went out drove it for a few hours with no problems. I take the car out friday to be insurance and inspection after a hour of driving the car just dies, struggles to start. If I let the car sit for a few minutes the car will fire right up and run for a few minutes before the car dies again. Also car is a stock formula just headers and full cat back. Pervious owner just told me fuel pump and fuel filter was replaced in november. Need your help fellas.