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The only issue I can see with this engine is the higher compression ratio (13.5 vs. 12.5), which it could affect performance more with lower quality fuel. Such compression ratios were used in the past mainly in racing applications, where someone had access to racing quality fuel. It looks they went into that direction to extract the best possible performance figures under this displacement level and latest emission regulations. E85 and Flex fuel kits could be a solution for those having access to such type of fuel. And of course the worst option would be to supercharge such a high compression engine ...
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