6.5L Diesel Engine
HI: Guys, I have a 2000 GMC 3500 automatic 4x4 mason dump with 60k miles, new lift pump, new injectors, new glow plugs, relocated PMD, new fuel filter, new rubber fuel lines to injector pump, injection pump timing is -75. no smoke. it seems to run good but has no power. Going up a hill it's hard...