You can remove the entire set of injection lines as a group. It would be recommended to get a crow's foot wrench for the lines on the pump as they are quite close together. Additionally, when you put the lines back onto the injectors, make absolutely sure that you have started the nuts by hand, and have not cross threaded them, prior to using a wrench. Sometimes they can get quite stubborn because they are not exactly aligned with the injector and you must muscle them back into place and simultaneously start the thread.

The intake requires .004 clearance cold.

The exhaust requires .014 clearance cold.

Good luck.