I have a Fresh Hydraulic roller motor build that seems to run hotter on the highway, The car has a all new cooling system, Fbody Rad, Chysler Fans , Casper harness , New water pump and a 165 stat.. My car seems to run at about 180-190 on hot days and more so when doing highway speeds.. Once I get into traffic the car seems to cool down.. I'd figure it'd be the other way around. Is it possible a brand new water pump is the issue.