Do you need to gap an iridium plug?

I am wondering if you need to gap an iridium plug and if so what would be a good starting point?
Or should the gap be left as it came?
Thanks

NGK say NOT to. So we recommend not to. That's the official line.

However I have down to 0.024" or so. Be careful and it's doable. Ruin the plug and per the official line, you are on your own.
 
yea, i ordered the plug from sbp ,pablo. i had a sland head and the plug worked great but then i had replaced it with a MM head. The gap did not really matter after that. it ran good for a seconed then i pulled the plug and the piston had touched it just enough to just about close the gap on it. Luckly there was no damage.
So anyone reading this know it is a good plug but it probably wont work if you have the MM head.
 
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