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  1. #1 Spark plugs? 
    SE Level Member 1998GRANDPRIX's Avatar
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    What would be the best plugs to run in my 98 GP GT with an SLP CAI and a zzp PCM?
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  2. #2 Re: Spark plugs? 
    GT Level Member 00grandprixgtp's Avatar
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    factory delco or ngk
    2.4Pulley, Ngk Tr7 plugs, Self tune, Methanol injection
    23.5 deg timing gen v,78mm billet tb , Poly dog mounts, Sd headers
    Zzp s2 intercooler ,UD wp pulley,is2cam,130# springs modded retainers
    P&P heads and lim built trans 3.29 gears harden parts 2500 stall shift kit
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  3. #3 Re: Spark plugs? 
    SE Level Member 1998GRANDPRIX's Avatar
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    Ive heard i should run copper plugs, they say these engines love them
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  4. #4 Re: Spark plugs? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Modded cars love them.

    They will only last 12-15k miles though because they are copper and a cheap plug.

    So if you decide to run them, plan on changing them often. Stock heat range is 606's.

    SMGPFC Member #1
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  5. #5 Re: Spark plugs? 
    GT Level Member 00grandprixgtp's Avatar
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    Ya gt is just best to run the stockers unless u like changing plugs a lot
    2.4Pulley, Ngk Tr7 plugs, Self tune, Methanol injection
    23.5 deg timing gen v,78mm billet tb , Poly dog mounts, Sd headers
    Zzp s2 intercooler ,UD wp pulley,is2cam,130# springs modded retainers
    P&P heads and lim built trans 3.29 gears harden parts 2500 stall shift kit
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