Sparkplugs?
Well I suggest Side gapping plugs, its cheap and gains you power and mileage. Do it to a cheap set of plugs,(motorcraft/autolite/etc) otherwise it sounds like bosch 4+ is the best ($5/plug)
Otherwise just replacing plugs can gain you mileage. I replaced the wires and plugs on my 89 last March and gain 2mpg. Was getting around 14 and now 16. Best
Otherwise just replacing plugs can gain you mileage. I replaced the wires and plugs on my 89 last March and gain 2mpg. Was getting around 14 and now 16. Best


