Rule of thumb, hot running at speed means radiator. Hot slow means airflow.
It sounds like you are hot running slow. Not enough airflow.
I think that car wants a radiator shroud. Most do.
Also, check pulley sizes... is there an aftermarket "underdrive" pulley installed?
What diameter are stock crank and water pump pulleys?
It runs hot all the time.It overheats at idle and it overheats while cruising; at 60mph with 3.54 gears, the temps climb to 200 (even on a 77 degree evening). Then as I slow down to about 40 they climb to 210. As I slow down to turn into my development (20-25mph) they continue climbing to 220-230.
