Those Running 3.73 And a TF w/ LockUp.. What's your highway Driving Like?

Do the math, what rpm are you comfortable with at 55, 65, or 70? My Dart, 3:55's, 26" tall tire is 2500 at 55. My Road Runner, 3:73's, 31" tall tire should be at 2200 at 55. I don't go out on the interstate.