I changed the spark plugs in my wife's '08 Shelby a couple days ago, NGK TR6's that have been in for about 7-10k miles.
The gaps were all over the place (started at .030 when installed about 1.5-2 yrs ago), and 2 of them look light in color.
Car has 67k miles on it, has had a '13 TVS pushing about 17 psi for about 1.5-2 years, put down 656/661 on a Dynojet, and it runs great.
Thoughts?
The gaps were all over the place (started at .030 when installed about 1.5-2 yrs ago), and 2 of them look light in color.
Car has 67k miles on it, has had a '13 TVS pushing about 17 psi for about 1.5-2 years, put down 656/661 on a Dynojet, and it runs great.
Thoughts?