Leading/Trailing plugs?
 

I know i could find this somewhere else if i searched hard enough......but is the leading plug the top plug or the bottom plug....thanks

yeah but my garage is kind of dark.....and im swapping colder plugs in for nitrous reasons.....and i cant see it.....im doing this right now and was just tryin to get a quick answer.....thanks again

Trail on top, leads are lower.

alright thanks alot