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JJGN62 replied to the thread 87 or 89 Unleaded?.You are right, 87 octane should be fine for the 350 from that vintage and in reading the owners manual from that vintage, claims are...
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JJGN62 replied to the thread 87 or 89 Unleaded?.I also have a 350 "M" with all of the California emission equipment. I initially ran 87 octane, but after listening to the knock and...
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