68 Dodge Dart with 440 Cooling recommendation

Had a cruise night in our town last night. I was bored so I decided to go down for awhile. Have never had the car in town in stop and go before . 8 o'clock at night
temp pushing 90*. On the road into town temp goes to 200* for a couple minutes then Taurus fan kicks in temp drops about 175* and for an hour and a half through stop and go , bobbed from 175 to 180. I was very pleased Not to mention the thumbs up and smiles.