Quote:
Originally Posted by PONTIAC DUDE
And just because you "can't" hear pinging, doesn't mean it isn't happening. have torn a few down with customers saying they never heard any pinging and damage was evident.
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That's for sure. My buddy used to brag about running his iron headed 355, at 10.5:1, on 87 octane. He couldn't hear any pinging. So, I suggested looking at his plugs with a magnifying glass. "Wow, look at all the pretty silver aluminum specs on your plugs!" He runs 93 octane now.