also, before trying to start, take the filter off let some air get into the engine properly, when its up n running put it back on, uh, unplug the inejctors or pull the fuse/relay for them or the fuel pump - chuck some cheap oil in (this will take all the shit out after cranking to build oil pressure) then as just stated crank it over to get oil back into the galleries then drain it, then again chuck more cheap oil in but leave the plug OFF and leave it to flush straight out the bottom.
this is what i would do anyway. aswell as what i said earlier.