whats the best tune up i can do to my 1992 jeep 4x4 2d 4.0 il6??? like what brands are the best or witch ones will help pro-forum the best? As far as tuning up the spark plugs and wires and rotar and cap????

 

pugs i would go ngk,there the best in my eyes and they aint exspensive,wires id go msd and same wit cap,but there expensive,but lucas fuel injector cleaner will help as well

 

what are you trying to do gian performance? your not really going to gain anything from changing the plugs besides maybe a little better +mpg i put E3 perfomance plugs in mine and gianed maybe 1mpg?

 

Plugs: no need for a high dollar plug. Just get a set for Jeep like Champions, do not fall for the gimmick plugs like splitfires etc.
Wires, go with an 8mm resistor wire so it doesn't mess with your radio.
Cap and Rotor, no difference, just buy em and replace.

 

cool guys thanks