HEMI 5.7L V8 Motor Change

I have a 2011 Dodge RAM 2500 model, an admission rod of one of the cylinder that was bent was changed, he took advantage of changing the buckets of the valves and again the axes of the rockers were mounted and the valve cover closed, but when he went to turn on again; The engine starts with difficulty and it is not held minimal, it must be accelerated. It is as if some cylinders were not working. They tell me that the hydraulic taques are loaded and that for that reason the vehicle is difficult to turn on and does not hold the march. What should I do? If anyone has the service manual of this vehicle I would appreciate the information or what is the solution?

I think that the rod that you mean is the rocker's thrust rod and if that is very likely that the valve has beaten with the piston and is also folded, if so it begins by measuring the compression of the engine.