Originally posted by Steve Y
A friend runs water/alcohol on a 64 GTO tri-power and it works well.
Not sure on the power gain, if any, but the car is fast and it keeps him out of detonation on pump gas.
I suspect he has around 10.5 to 1 compression.
One interesting note: We were cruising down the expressway with it on a hot day, and the car would not idle down when he took his foot off the gas. It maintained approx 70 mph.
Looked in the glove box and his pump controller was on for some reason, flipped the switch off and the car idled down.
He was running straight water in it at that time. Somehow the water kept that thing going. Maybe it was the steam effect.