champion plugs

My '99 Ram had it's original Champion plugs in it when I changed them at apx. 74K... ran good too. I put Bosch platinum plugs in it and it didn't seem to help at all, it ran worse for me then than with the factory plugs. I didn't leave the Bosch in very long and went back to Champs. If I ever deside to go with anythnig other than the stock copper plug ( right now I'm running a super coil, MSD super conductor wires and the comp. is reprogramed) I'll go with eather NGK V-power, or Champ. platinum. All my Mopars get Champ. plugs except the '56.. it gets Autolite (the O.E. plug for it).... unless I deside to put a 440 in it....Hummmm!