1997 Ram 1500 4x4 5.9

I just replaced air filter oil & filter & regular 1 elect. spark plugs for 4 electrode SP
engine runs steady and grate but i can smell that fuel its not being burned
100% and bad fuel efficiency [:@] which would be de 1,2,3 steps to solve the problem.

thanks for your help guys

 

you must be talking about the Bosch 4's.. they dont do well in the rams for some reason. I have bosch 2's in mine right now with the msd setup in hopes of having the plugs last more than 20k miles... so far im not impressed...