ND IW22 iridium spark plugs

seattle##gs · Mar 31, 2021

I installed a pair of these plugs in the Atlas today and they give a noticeable improvement in performance. Use only after the carburetion is dialed in because they are $10 apiece. Also goes by the number 5307.

robs ss · Apr 1, 2021

Is that a noticeable improvement over other Iridiums (eg NGK) or over standard plugs?

Bernhard · Apr 1, 2021

What ingition system have you got on your Atlas?

Schwany · Apr 1, 2021

That's a nice plug for the Norton and EI.

Summit Racing sells those ND plugs for $7.99. Shipping would probably make them $10 though, unless you could come up with a $99 order, which would ship for free.

seattle##gs · Apr 1, 2021

I have a standard Boyer about 20 years old.
I was using the usual BP7ES plugs. No idea how the Denso plug compares with other iridium plugs.

yves norton seeley · Apr 2, 2021

I use ND plugs for years,just perfect!
Yves

joe czech · Apr 3, 2021

i'm sure this has been covered many times, so FWIW, if using iridium, DO NOT buy them off fleabay UNLESS you know the seller. hit or miss on whether you'll be getting genuine iridium plugs - many knock-off coming out of china. if the price is too good, most likely they are knock-off plugs.

seattle##gs · Apr 3, 2021

I bought 4 from amazon the other day, I hope they are not fakes.

ND IW22 iridium spark plugs

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