Thread: Easy way to add HP?
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Old 04-19-2019, 10:46 AM
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Cobra Make, Engine: FFR MkIV 427
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3.55? 3.73?
Personal choice dependent upon tire size and trans gearing (.82 vs .64 OD), where cruising RPM should be tolerable to you.
You should be able to find a speed calculator online. Typically, you will need to know revolutions per mile for the tires.
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