Thread: spark plugs

most everybody here swears by ac delco coppers - they dont last as long but seem to work better.

and when i say they dont last as long , coppers a few years - to double platinum that last a decade or more.

There is a few threads on this in this forum.

I have ac delco special double platinums - ultra fine wire center

Originally Posted by heavydtheogre

most everybody here swears by ac delco coppers - they dont last as long but seem to work better.

and when i say they dont last as long , coppers a few years - to double platinum that last a decade or more.

There is a few threads on this in this forum.

I have ac delco special double platinums - ultra fine wire center

Wrong! We preach autolite copper plugs for supercharged applications! Spend $12 on a set of autolite 605 and call it a day check them every 3 oil changes and replace or regap if needed. Changing sparkplugs take all but 10mins to do anyways. Iridium isn't recommended for boosted applications plus cost more then $2 each plug that you will pay for autolites.