plug gap for 91 explorer?

Does anyone know what the gap for my 91 explorer v6 4.0 is? I can not find my manual, and I could not find it on the web.
This is the XLT and 4wd. Manual tranny.

Thanks Denny, I forgot about that tag. Most of my cars don't have the original motors in them, so I usually ignore the tags.

Yeah if you got one. I chose that one because it maches the tattoo on my arm. I am a firm believer that as long as that flag flies somewhere no one is ever forgotten.

Dang they got that email quick Denny, Again thanks for everything, Can't use the avtar until I modify it a little, Its a hair to big. But will use it on my site when I work on that again.

just for reference guys.... i'm getting a job at mitchell starting next week and i get a free copy of on demand.... so from now on if you need stats such as plug gaps and other things as well.... i'll can get it for just about ANY vehicle