LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

AR-12 or NGK plugs? And are the AR-12 too short?

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Old Sep 15, 2005 | 06:35 PM
  #1  
stepuptata's Avatar
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Help. Autolite Ar-12's. Too Short??? Will They Work???

I Was Told To Buy Ar-12's For My Modded 97 Z-28. But The Plugs Are .25" Shorter Than The Original Plugs. Will These Still Work. Thanks.
Old Sep 15, 2005 | 06:42 PM
  #2  
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What Plugs To Use Ar-12's Or Ngk

Ar-12's Are Shorter Than Stock. Are The Ngk Tr-55's The Same Length?. I Was Told To Use Either Of The Two. What Other Plugs Are Good. I Have The L.e. Stage Two, 36 Lbs. Pound Injectors, 255 Fuel Pump, Msd Coil ,long Tubes. Msd 8.5 Wires,. Also, My Car Runs Very Rich. Any Suggestions Would Be Greatly Appreciated. Thanks, Troy.
Old Sep 16, 2005 | 12:22 PM
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Re: Help. Autolite Ar-12's. Too Short??? Will They Work???

Keep the question in a single thread.... no need to post essentially the same topic twice.

Merging the two posts.....

Last edited by Injuneer; Sep 16, 2005 at 12:24 PM.
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