[Dave at Pelican Parts]

You can do the spray-pattern test in the car, but you will probably want a second pair of hands. You unbolt the injectors on one side from the manifold, and put them into glass mayo or baby food jars. Have someone crank the starter while you look at the jars. You should see a cone-shaped pattern, not a dribble and not a stream.

Put those injectors back in, and repeat with the injectors on the other side of the motor.

--DD