TIMING or FUEL/system & pressure-problem ??HELP PLEASE!

What is your question?

Seems like it wasnt getting gas so I replaced the fuel pump and filter.. now it is backfiring outta the "choke" and every first try it wants to start but dies out. wont stay running. checked fuel pressure manually, replaced fuel pressure regulator (which never had a oring or seal and I have on order). cleaned out the cold start injectors