i have a vortec s/c and the only coolers they recc is air to water ,granted i know they want to sell their product ,but it leads me to believe it works best for their application.i bought the a/warter one big bucks but i hope i didnt make a mistake ,i do have meth also but during the day when its 90 here even here my iats will reach 190-200 no kidding !so ihope im gonna see a good size diff.what kind of iat temps do you see on average ?i always seem to make the wrong decision .this kit is like 2k ,air t air i could of setup for 700 or so .maan.i thought for sure with that kind of price diff it surely had too be better.maybe with meth itll help ,im just losing so much power its like im driving a 4 cyl.during the day with no int at all.thanks