hi,thanks for all the info,it vibrates when stationary as well,have also noticed today it has a blow on c box so that will be reoved soon,was looking for an excuse anyway,lol,i will check the chip,is it the sae size as an l6 2wd one?only i heard something about l8s having a pectel babyboard or something???

the plugs are motorcraft items platinum ones,look quite old to me just ordered soe ngk iridiums for it,unsure of gapping prob about .8 at a guess as they weere pretty big before,cap and rotor am unsure of the plug regap seems to have cured the mf on boost for now so the nnew plugs should help that too,it sees to go ok,i had it off a rb today in second on damp road and the back went out,lol,wasnt expecting that from a 4x4 good fun tho,will check exhaust and ecu and coe back,cheers neil.