e30 wont start

my 84 318 will not start. i was driving down the road and heard a few loud backfires, and then it just stopped going. i just replaced the fuel pump a few minutes ago and still nothing. i still think it sounds like a fuel delivery problem because right before the backfiring it hit fuel cut. any ideas??? thanks.

steve.

and its not out of gas. i forgot to mention that earlier.

Along shot, but if you have water (condensation) in the fuel it will pop,bang, cut out, and may quit running. I would buy a couple of bottles of dry gas, water out, heet, etc (isopropyl alcohol) dump them in the tank, give her some settling time and try restarting.