ok i have a b16 fully built and i am plan on runnin over 20psi at the track and like 15 or so on tghe street so the question is what stage plugs will i need to use 2 stage colder or what?

Thanks for your help

mike

 

Here's a link that might help!

click here

 

yeap

 

ngk 3330's gapped to .028 for 15psi and maybe .025-.026 for 20psi.