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Yes, all things being equal, would it be better running a flatop verses the piston pictured above??

~thanks

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That all depends on what compression ratio you need to be able to run the octane fuel you want.

If you choose a flat top and end up with 12.5 compression but want to run 89 octane fuel then yes you would need a piston that looks like the one above to get an octane friendly compression ratio and still have quench.

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