Which is what he did. Noticed driving home last night the power difference is perceptable which makes this job very satisfying -smoother more stable idle. Unless you are set up with a pop tester and shims, I still believe it is better to take injectors to a shop to set up correctly. Gus charged me 15 an injector to balance, etc. I cannot say enough good things about Pacific Fuel Injection and Gus, a dying breed sadly in this high tech world . .