For non-computer cars I use a 160F thermostat and rad/fan/shroud for an AC car.
Tow car used to be the 72 wagon and pulled Monteagle on a July noon and never broke 200F. Usually runs under 180F even at light (but can really hear fan whine). Do not drive slow.
Rig that day was as shown:
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Orlando - Where rust must be imported.
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