hey when i first started installing my LTs i removed the plugs/wires (NGK TR6s & MSD 8.5mms). i removed the rear ones (5,7,4,6 & 8) and they looked like they were fouled. some had a strong smell of raw gasoline on them and had a black coating to the entire end of the spark plug (end that goes in motor) then i pull the next one out and it looks like it has oil on it. i mean it has black liquid all over it. then i pull 1, 3 & 2 out and the tips are light grey / white!!

what could this mean? the car has had a real bad stumble ever since the TR6s went in. i had them put in because i planned to juice it, but since it started misfiring i never got to spray it. ive replaced the optispark with a new one, same goes for the coil.

i had the plugs replaced by someone else. so the quality of work might be a question. does this sound like incorrect gapping? maybe a plugged up fuel filter? i guess the black liquid could have been a lot of half burnt gasoline but it really looked like motor oil.

 

ttt

 

Sounds like what I had before I had the intake manifold leak repaired.Especialy that #8 plug,covered in gunk only after a few thousand miles.If there is no leaking oil onto the driveway,maybe just need to retorque the manifold down tight.Hope this helps.