Well I was thinking since it was #6 and with the stock fuel system being a dead end style system. It's been well known that we have fuel pressure issues around that territory. Our fuel runs in Series and #6 will get the least amount of pressure especially in stock form. Less pressure + Less fuel/cooling = Knock. Most guys around there convert to a return style system so they can run a FPR after #6 and ensure the rest of the cylinders are getting full pressure.
Not trying to disprove you, just making all possible issues are considered
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09 Monterey Blue Global Time Attack Street Class Build
Build Thread: Saber! Instagram: @SpecJay
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