Aviation Gas

Short answer: AV gas is not a good street choice. It won’t burn pistons by itself, but modern AV gas is mostly unleaded/low-lead and formulated for altitude, so it gives little of the old octane benefit — and you’d have to re-jet to suit it. Higher octane only makes more power if you raise compression/advance to take advantage of it; a properly tuned engine makes the most power on the lowest octane that won’t detonate.

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