I took my car out for its longest drive yesterday, nearly 300 miles on the hottest day of the year so far in the southern delta heat. The car did fantastic, cruised around and it stayed around 185, would bump up to 190 in town....until I got stuck in a wreck with no turning back. I sat there for about 10 minutes just easing forward when I got the chance (A/C on max) and i kept a close watch on my temp gauge, it eased up to around 205 (which does not worry me, just the hottest it's ever been). At that point I looked over at my factory gauge (which I have never seen work) and it was reading halfway between Cold and Hot. I was excited to see that my gauge did indeed work, just that it don't start moving off of C until around 190, at the rate it was going up, I would imagine 220 would have it over on H. So, with that said, anyone have a clue as to what Ford intended the 289 to run? I would assume around 200ish since that's when my gauge started to actually work...?