watch that flex fan , they can be killers , there are mixed fellings in the 5.0 world about there cooling ability . don't no wether you put it on or you bought it that way with the fan but it must be LOUD . ( if you can in the near future ,get rid of it , and use gloves when you are ever around it ,they are VERY dangerouse) get a electric or standard fan for that stang . next ,you may have to much coolant in it . contrary to everyones thinking . antifreez is not a good coolant at all ! and after owning 7 mustangs myself .And being around the hobby for close to 30 years now ,i am not a big supporter of underdrive pulleys . i have never seen in all that time any substance in what the manufactures claim ,and have even asked miss cleo about them . so now you no where i stand ! 192 or 180 is the ticket . check your heater core . do you have good flow . good luck .. Michael
