1996 GMC 2500 with a misfire??

07-07-2016, 01:23 PM
I have a 1996 GMC 2500 with the 5.7 vortex in it and I have replaced the heads, cap and rotor, plugs and wires, timing chain and gears and every gasket on the motor. When I ran a compression test all of the cylinders came out to be right where they should be. Even after doing all of this work to the truck it still runs as though it has a severe misfire. What could be causing that to happen?

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