I replaced my ckp but it still stalled out on me and wouldnt start the other day after an hour drive. It was really low on gas though, but it wouldnt start for like 20 mins and had no fuel pressure at the rail and the pump wasnt priming.

so mine is fuel pump I believe now.

 

check your down stream o2 sensor
and maybe your throttle position sensor
clean your carb out too