unfortunately i do not have a monitor so my thoughts were just speculation. how long do the temperatures take to cool down then. i wouldnt suspect more than 10 seconds after your in motion. im talking something along the lines of this scenario. driving down a highway for maybe 30 mins. get off the highway. hit a stop light. temperatures rise to that 150. you start to move and air flow is restored at about 15-20 mph and your temps should be back to normal short after no?
it would also depend on whether you have a SRI or a CAI also. where the hp isnt much different the isolation of the CAI cone would greatly effect this would it not?
I logged a bunch of IATs right as summer was starting to hit us with 100+ degree heat. I found that it only took my car a few seconds even in the hottest weather to get IATs back to ambient air temps.... as long as you give it some acceleration

I have the Cobb SRI btw, we were having one of those SRI vs CAI discussions about hot underhood temps.