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02-03-2009, 12:24 PM
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Registered User
Join Date: Feb 2000
Location: Modesto, CA
Posts: 1,842
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SparkPlugs in a 4x4
Ok offroaders what plugs do you like and why?
I realize alot of plugs are very similar and most all will work fine. I will be replacing all my plugs soon and thought I would get all the opinions out there  My engine: 1974 454 w/aftermarket EFI about 9:2 compression and Mallory ignition.  
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1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks 
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