I Have An 07 Gen III 5.3 With 862 Heads. It Has A Truck Norris Cam, 560 Springs, Push Rods, And BTR LS7 Lifters? Is There A Base Tune Or A Tune That...
Yeah, they are the original injectors from the day I drove it off the lot. I have the new injectors... guess the only thing to do now is make time to...