well, after starting this thread this afternoon, going and taking a business law test, and coming back to read for another hour or so, i finished this hella long awesome thread. sooo now im adding to it! i have a 92 explorer, with 170K miles.... i KNOW this hasnt been done, and im hoping i can find the dang intake spot on it (im sure i will be able to, but i fyou have a pic of a 92 explorer 4.0 v6 engine, post it!). i have a feeling this could help, because my car has some issues with oil and what not, and pinging, and im hoping this will fix it. i guess we'll find out soon!