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| 2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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Thread Tools | Display Modes |
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#1
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I can tell you at least one degree. (.5 advancement for every 1 octane increase)
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#2
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Also note that this is for spark advancement, not the actual timing belt advancement.
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| Display Modes | |
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