There are a few hundred threads around here about the electric pumps. The best is the facet duralift pump, but they're hard to find at local stores.
Basically you need a low pressure transfer pump made for diesel fuel not gasoline.
If they are Ford gp's they should come out clean. If some other brand then it gets dicey. A lot of folks try and with some success to remove swelled gp's by putting a chuck on them and holding pulling pressure on them and screwing out of the head basically threading them out.