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Re: Re: Re: spark plugs......
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Originally Posted by BIG-L
Yep !
Pontiac used to use the AC-Delco 41-921 double platinum plug.About a year or so they switched to the AC-Delco 41-101 which is an Iridium plug.
The AC-Delco 41-101 is for both the GT/GTP.Stock gap is .060
~Larry~
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Read this one again.
Jim
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