its a new radiator with a 180* thermostat. im not so sure its lean as it is a bit rich at idle and part throttle.
i will mess with timing and even the carb a bit. i did not drive enough after i got off the freeway to notice a drop in temps.
i realize 220 is not a "bad" temp but its a bit high for my taste. i would at least like to see the temps drop 15* even 10* would be nice.