changing my plugs what should i use 9s or?? also what gap?

[PNSPERFORMANCE]

Changing all the plugs in my apex what ngks should i use and what gap i am running 16 psi

I have read to stick with the nines to eliminate fouling and .020 for gap ?? Just not sure what to do Thanks for the help!

 

[zebiraross]

I run .020 cr9eb.

 

[PNSPERFORMANCE]

Ok sounds good,thats what i will put back in there....