In my world (Roe SC) the intake is directly in the engine compartment...I use water/meth to cool the charge as it inters the throttle body...it is advantageous to hit the meth a couple of times before going WOT to cool the metal parts on the intake system so when WOT occurs the meth is working to cool the air and not the intake path. Just seems to me that a lower ambient temp at the intake point and subsequent points would create an opportunity for more power.