Thanks DiabloMatt. That is what SHOULD be in my truck now, but I will order some new ones and check the gap. I have a feeling the factory plugs are all over the place on the gap from everything I read on other posts. Will let you know what happens.



yes they are.... had a guy on here that found ...

Thanks DiabloMatt. That is what SHOULD be in my truck now, but I will order some new ones and check the gap. I have a feeling the factory plugs are all over the place on the gap from everything I read on other posts. Will let you know what happens.

Sounds good, don't want to mess up a good thing. What about the spark plug issue?

bryant250,
Did you get an answer on what plugs and gap to use with the 87 & 93 tune? I have a 2013 ecoboost platinum with 77k miles on it. Got the Intune I1000 and am having very bad misfires using both of these ...