Why would you want to purposely build a street motor using pistons that will give you a compression ratio too high for regular fuel? You don't know by how much you have to retard the ignition timing, you may have to retard the ignition timing so much that it will make the motor in efficient. Losing power, increasing emissions due to weak combustion and more wear to the cylinder. You are better off with the right compression for the fuel you will be using on a regular basis.
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