My friend has an alcohol fueled dragster, 455 cu in engine makes 850 horsepower and man is it wild, shooting flames 20 ft out of the exhausts. Also has a blower and jets the size of dixie cups. There's no question it can make the power, and with his 300 mph runs the performance is there.
It's all about the A/F ratio and with alcohol its 9:1 or lower, our bikes look for something more like 13:1 (only because the 14.7:1 perfect ratio is impossible due to additives in the gasoline). You're just going to have to tweak the carbs a bit to improve the A/F ratio and accept that the volume of fuel input isn't going to translate into the same mileage. Doesn't make it right, just makes it what it is.
