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6,132 Posts
Worse case scenario, you could have warped the valves on that side, in which case you would either need another head or have that one redone. I would check the EGR valve 1st though, it would make sense that the increased heat and back pressure could have blown it out. And a bad EGR will make it run like that. You should be able to just unplug the vacuum line going to and see if it makes a difference. If that is the problem it should clear right up when you unplug it. I don't even run run on any of my trucks, I just bolck it off with a plate.