• 8) what's a good fuel additive to use in my 289 271hp just got running has been sitting 13 years all stock engine need a lead subittue. thanks jim

    Edited once, last by conrad (November 29, 2021 at 6:02 PM).

  • Do you have hard seats for the exhaust valves? That would help eliminate the need for a lead additive.

    -Fred-

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  • This is probably as good as it gets, advertised as real lead, I still use it every so often when I want an high octane than is available at the pumps. The content cannot be displayed because you do not have authorisation to view this content.

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