The best spark plug for a 04 gt ???

[PALMCASTER GT1]

I read alot about all these different spark plug's and gaps , but which ones work the best and why would you change the gap from stock specs ????

 

[Fivefingerdeathpunch]

you stock?

get ac delco, .060 gap.

 

[joshv]

best plugs are to keep the the ac delco

 

[matt5112]

owners manual suggests an NGK plug.

 

[blueguy]

I gap all my plugs at .050".

Less chance of a misfire that way because I'm lazy.

 

[PALMCASTER GT1]

@fivefingerdeathpunch , yes , bone stock until this tax season , but plan to go with a cam,pcm, headers and cat back.that all I need.

 

[PALMCASTER GT1]

@matt5112 , thats all I've used are NGK , but what is the reason for the different gaps:th_scratchhead::th_scratchhead:

 

[matt5112]

We run more than stock boost levels.