I ran a stock never touched 65 rad in y 65.Jack slipped and crunched it good.Evene bent the shroud that is stock.It ran 180 190 all day.Went to a cheap champion off the bay for 150.It runs 180 all day even when its 90 out.I cant believe how well it cools.Only thing I had to do was make a top hose and use a 1 1/2 adapter to 1 3/4 hose for lower.Rocky