Eric, Run some Berrymans B12 through the system or a tank of gas then come back and recheck the spray pattern. Unless you have some bad injectors, they all get gas at the same time and under the same pressure. Unless there is something blocking. You can also take an injector that isn't giving a good spray pattern and swap it out with a line that the injector is spraying good, and that way you can tell if there is still blockage in the slits of the control plunger tube or trash in the injector screen. John Hervey http://www.specialtauto.com/