[mightymoose_22]

this may sound dumb, but it is sometimes the simple things that cause us trouble. When you replaced the inertia switch did you remember to push the button to reset it? If it is in the raised position then that's yer problem... if all else fails, attach a vacuum sourse to the fuel system to draw fuel up through the lines beyond the filter. From there the elctric pump can push it through the rail.