Plug Analysis
 

I just finished an EGR job. During that job, I decided to change the plugs.

The plug job was prompted by a large hesitation I was getting at around 3500 RPM at hight speed WOT (~80 MPH.)

These pugs have only around 15K miles on them. They are not wet and the seem to be buring fairly evenly.

Does anyone have any comment on thier look. The outter plugs are the leading and the inner are the trailing.

https://www.rx7club.com/forum/attach...postid=1339063

Found this site a while back. They have an interesting on-going test of different plugs.

www.silverbulletrx7.com/plugs.html