Wow, that IS hot for only 80+ degrees and at cruising speed...and at colder temps I NEVER see even close to 9:00, even stuck in traffic. I'd check the fins and engine area completely (PITA, but behind the fan, too) to make sure you don't have debris (or a mouse's den) stuffed up in the crevices. Then maybe check that you're not running too lean. Once you find the problem, it may be worth it to you to get a cooler (Jared Fenton mentioned in another thread he found a Euro 28-row cheap ...might be a poss for you). Hope this helps. Post back your findings ...I'm curious, anyway.
Edward