spark plug gap?

[fatal1tywulf]

okay sticker states .051 to .057 autozone states .054 so lets hear some opinions wich is correct or best? I pulled some plugs and found a few at .o60 and .080 sooo this was badly in need of a tune up.

 

[fatal1tywulf]

okay sticker states .051 to .057 autozone states .054 so lets hear some opinions wich is correct or best? I pulled some plugs and found a few at .o60 and .080 sooo this was badly in need of a tune up.

btw this a 2004 3.9v6 I kinda forgot to include that

 

[fatal1tywulf]

btw this a 2004 3.9v6 I kinda forgot to include that

I am using ngk iridium TR55ix 7164 plugs and decided to go with .054