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valve seats

ZCCOR#109
in Engine & Drivetrain

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Here is my question.

After many years of no lead, what is the consensus now on the need to use a lead substiture in the fuel for my 72 original engine?

Was all the scare about needing lead for seat lubrication correct?

I did an additive for a number of years but have gotten away from it lately.

Any hard facts? experiences?

What say you? AND why.

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