I have to get new plugs and was wondering how many steps colder I should go running around 7-10psi. I have the Iridium plugs from my s/c that I am running now but they are fouled out. I think they are 1 step colder ?

 

just get 2 step, you'll be fine

 

run step two for 7-12 psi..

http://garage1217.com/album1_011.htm

 

1 step be fine 2 step would be little rich.

 

im at 7 psi running 3 steps. i would be running 2 step colder but im tuned on 3 steps colder so its gonna stay that way haha

 

1

 

1 x2.