Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#1
01-11-2022, 07:16 PM
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I mix 5 gallons of VP or Sunoco 110 leaded in with California 91 octane in our stone stock 67 L78. ZERO pinging, not even with 38* total timing but I keep it at 36*.. Works good, smells better... We don't drive it too much, once or twice a month.
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