[stallion112]

I've got a 429 SCJ with aluminum intake, Holley carb, slightly bumpy cam, and headers - nothing fancy. It used to run about 205F on a hot day while cruising and 210-215F when at a light with a 180F thermostat.

Got rid of the original copper radiator (rumored to be from a 69 big block Corvette) and dual electric fans. Installed an aluminum radiator, '95 Taurus electric fan and shroud assembly (high CFM), and a Flex-a-Lite fan control unit.

Runs at 185F all day long now when cruising, bumps up to 190F with the fans on at a light and remains stable.