HELP... fouled plugs????

[$nake Charmer]

my truck started running like **** after a couple of weeks of running fine, so i pulled the spark plugs and they were what seemed to have oil on them... i put a new set of iridiums in it and it ran perfect, for about 20 minutes, then started the same ****. like sputtering and what not.

[George C]

you been wasting good money on those junk iridium plugs. also if your boosted those are deff wrong plugs.

are you using pCV or breathers?

[$nake Charmer]

im not boosted right now or i would be running colder plugs... im NA but i was told they were some good plugs, and they were for about 20 minutes... an sugestions on why all the sudden im fouling plugs??? i havent even been to the track on this motor yet...

[$nake Charmer]

are you using pCV or breathers?

im using PCV but have a breather setup off my supercharged motor... do i reall need to use it running NA?

[George C]

NGK TR55 for under 11.0 cr. NGK TR6 for boost or juice or above 11.0 cr

how long has motor been together

pcv on LS motors dont work for anything besides stock

thats why GM has like 7 designs, they all suck

[GasGuzzler]

Iridiums are great N/A and no matter what plug you have fouling in 20 minutes means there is a problem. Never heard of that tuner so it's suspect but tunes don't change all of the sudden. Need more info.

[$nake Charmer]

It's not the tune... But I'm not sure what is fouling my damn plugs, the old ones had some oil omln them and that's all I know... What are the causes.