I would go with a set of 155/30s from Maryland Performance Diesel. Great guys to work with, good prices, and quick turn around. Also I just dip the whole injector in some motorcraft 15w40 before I install.
So I've been having an issue with my #2 injector for awhile now. Pulled my injector out around Christmas and the bolt that holds the solenoid to the injector through the spool valve was broken so I took one off of a set of core injectors and re installed. This worked for a couple of weeks then...