truck just stops
I have 93 chevy p/u with 4.3 engine. the other day was driving alone and it acted like I ran out of gas but I have 1/2 tank.went back 1hour and it started back up.took it home left it sit for a day or two. went to store in about a mile away . got there got ready to leave would not start ,tow home.checked fuel pressure has 40lbs. stop running again, pulled line off carb. turned key over .no fuel coming out on line.put new fuel pump on last year.now what? HELP PLEASE.