Would my dual snorkel scoop be affecting my cooling at highway speed?

89on35s said

last Friday at the strip, it was started, stopped and idled between my 10 passes with no AC on for a few hours and the temp never topped 160*F. In traffic with the AC on, it does not go past 180*F. On the highway with the AC running 70ish MPH at 2000 rpm the temp goes just past 200*F and drops back to 180 once you are back in traffic.

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From these symptoms, I would suspect that your radiator is not sealed to the radiator support and air is going AROUND the radiator and not THROUGH it... Especially since it's happening at highway speeds and not in traffic....

Make sure that the radiator is sealed to the radiator support... You can put some of that adhesive strip foam in there to block any air gaps... This way all the air going in the radiator opening will come through the radiator and not around it....