Exactly. The Ford injectors have a better spray pattern. They actually atomize the fuel instead of spraying a stream like the stock ones. I've felt a difference in how the truck runs. It idles smoother, the throttle is a lot crisper. On a cold start, it would rev to about 1200 rpm then idle at about 800. Now, on a cold start, it doesn't break 1000 rpm. There is no more fuel odor sitting at a stop light. I'm going to run an injector cleaner through this tank and then change the plugs and see how its doing. The blue tops are supposed to be 22.5lbs @ 43 psi. I believe the yellows stock ones are 17lbs @ 43 psi.