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“Tuning” doesn’t work that way…
A scientifically & mechanically correct performance calibration won’t leave very much room to “move” power around. If your ignition timing is ideal (MBT), and AFR’s are optimum (LBT) throughout the rev range, then you’re making as much power as safely possible throughout the rev range. Just throwing more fuel at an engine won’t increase power, in most cases you’ll actually lose a lot of power. Pump gas has a very narrow and unforgiving “sweet spot” meaning: LBT may be 12.3:1 to 12.6:1 – anything richer or leaner will lose power.
Alcohols are a lot more forgiving and easier to tune in this respect. You can have liquid methanol coming out of your exhaust before power drops off from being too rich (but you won’t make more power from being that rich).
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