Alright, another lb7 injector question. I have a 2002 Chevy Silverado 2500hd with the lb7 Duramax and 130,000 thousand miles. Once it’s warmed up it knocks at idle I had the man at Autozone plug his Snap-on into it and check my balance rates. In park number 1 was running 9 to 10, number seven -4...