One of the members that went to Phoenix from Tucson for a meet last month has 3.73s. He was running around 2,700 at 75 mph. With 3.27 I run 2,150ish at 75 (the 89 Cougar runs around 2,300). To try out 3.73s on the highway, try running with OD locked out, I run around 2,700 at 75 in D.
I would love it since I will spend .0001% of my time on the highway with this car. I might think about them over 3.55s I want to do. Probably wake it right up and help my town mileage. I have an 00 Grand Marquis with 2.73s for the highway miles, but I gotta tell you it was a dream driving the 97 Cougar 100 miles to Phoenix (even the 89 was nice, I took it on a 1,400 mile trip when the Grand Marquis was getting body work done) but not as practical as the Grand Marquis with a family of 4.
I can say that even with 3.27s the 97 is a handful when it rains here, we get super slick roads because of all the oils and coolant from cars that leak, and the oils in the pavement that seep up to the top. I really have to be careful, but you should be fine because you are used to driving in moderation more than likely, here you can drive the car at 100% almost all the time, it gets messy when it rains.
97 Mark VIII LSC/Silver/Gray leather
97 Cougar 4.6 Sport/White Opalescent Tricoat Metallic /Gray leather down but not out?
89 Cougar LS 3.8/Oxford White/Gray velour/HG need replaced AGAIN
00 Grand Marquis LS/Vibrant White/Gray velour
63 Falcon 302/black and rust/shed isn't moving
82 F-150/Oxford White/dumb VV carb doesn't pass emissions