I am running a factory fan and clutch. My radiator is a copper/ brass original style 4 core from classic Industries. A high flow waterpump, factory shroud,and thermostat. At 100 degrees sitting in traffic with the vintage air on, I'm running almost 180 degrees. My timing is 17 -18 degrees. Hope this helps.
1969 x-77 Z/28 orange/ white stripes, named by my daughter "Clementine ", M-22 close ratio, 4:10 12 bolt, CE 302. Hugger orange with white stripes. White standard interior. Restoration complete May 2018