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    LB7: injectors and balance rates

    I am new to the duramax motor I am want to know what is a good balance rate my cylinder 3 is showing 2.8 to 3.8 but it ticks at a hight rpm 1500 to 2000 you hear it at a ideal you do not hear it and cylinders 6 and 8 are running 1.6 to 2.2 should I change them and be done with it there is no...