How to read plugs

found another on plugs, has more links at bottom left to click on.

http://www.dragstuff.com/techarticles/how-to-read-plugs.html

good read

Very good to know, thanks.

I've seen this before. A couple of years back I was doing some research on plug reading, the proper way, what to look for, etc. There seems to be some conflicting info out there . This article is a good read but the part on jetting I don't really agree with that. You need to be looking for the fuel ring on the porcelain.... where the sun don't shine. It'll be down in (or up in, depends on you look at it) towards the hex of the plug. Go to CVS or Walgreens and get one of those things you use to look inside an ear, make sure it has a light so you can see. Make sure you're doing this on a set of fresh plugs.

You need to watch reading plugs with that site, alot of what they are saying applies to race fuels.

With todays pump gas its pretty much impossible to do. You need to use O2's