1996 Dodge Eagle Vision

Engine Performance problem
1996 Dodge Eagle Vision 6 cyl Front Wheel Drive Automatic 75000 miles

Car dies after driving 7 miles sit for 1/2 hr it starts then dies again at 7 miles. I have replaced coil packs 3 times computer 3 times Fuel pump and filter still dies at 7 miles. I have blocked car up and run it 100 miles on blocks it runs. Put it on the it does same thing. Need answer where to go from here.
Thanks Lenny
March 28, 2008.

WHen it doesn't start, are you getting spark and fuel?