hardened valve seats L78 - The Supercar Registry

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hardened valve seats L78

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12-28-2002, 07:54 PM

Mr70

Yenko Contributing Member

Join Date: Jan 2001

Location: Illinois

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Re: hardened valve seats L78

On my L-78/TH400/4:10,I use regular Mobil 93 pump gas.Add 12 oz.of the Jack Podell Lead/Octane additive.Use Original AC R43T spark plugs and adjust timing.
No knock,stumbling or ping,Runs like a Wet Dream!
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