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Spark Plugs for Carbureted Ms4 Ls1

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Old 04-02-2010, 08:00 AM
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Default Spark Plugs for Carbureted Ms4 Ls1
Hi, I have a freshly rebuilt Ls1 with an Ms4, Victor jr intake, Edelbrock 750 Carb, stock spark plug wires and an MSD 6010 whose instructions specify "non-resistor spark plugs cannot be used". Which spark plugs do you guys reccomend? NGK Tr55? E3? Thanks for the help
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Old 04-02-2010, 10:28 AM
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I tried colder plugs (TR55) and they kept fouling. Ended up with stock ranged Autolite AP5245's gapped at 0.045" and it's been working for me...
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Old 04-03-2010, 01:04 PM
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I've got TR6s in my car but I've got a set of TR55s that I am going to put in to see if it runs any better
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