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e85 is a double edge sword. Some intelligent cars will sense the extra oxygen in the exhaust and go richer, which means more power and you burn more fuel than gas alone. Other cars that constantly adjust timing and vvt based on load will allow more timing and adjust the valves for MORE POWER but run lean.
Now you can buy e85 gizmos that piggy back the injection system and if you need to remove the head for any reason get it milled to a 13 or so to 1 compression so you can run e85 24x7.
Running more boost with e85 is tricky as the engine maybe be able to handle more boost vs more cr.
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