Spark plug gaps

[southgate]

Was told they should be .35mm

Is this right?

[GreenV8S]

Doubt it. I'd I expect it to be nearer 0.9mm or so, perhaps you have got your units muddled up and you were told 0.035"?

[Biggriff]

Depends. Normal copper electrode or platinum. They are different

[southgate]

Using normal copper NGK R plugs.

I think you're right V8, 0.9mm equates to 35 thou of an inch.
I was told 0.35 so assumed this to be mm, although thought this was too small!!

So its 35 thou of an inch!