Actually the meth delays the onset of quench. That is directly from Matt snows mouth. Running a mix adds power, and actually cools better than straight water. I tested that using washer fluid and or water on a 2200 mile journey. The washer fluid worked best, and you got a performance gain to boot.
straight water works very well. You can get a little more cooling, and a few more HP's using a mix is all. I ran more water through my motor on the trip than I did diesel. LOL that was one clean ass motor at the end of the trip.
so the dyno on snows web site is not average gain by any means...they claim 71hp increase and in this thread its looking more like 25hp