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#1
01-04-2023, 03:20 PM
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I had a higher compression Buick and it would ping like crazy on regular 93, putting 5 gallons of av gas to a tank eliminated the ping and never an issue with the carb.
I also ran it in my outboard drag boat with zero issues. I was told that the rating of 100 octane was a min rating and it could see higher numbers. 
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