overheat on 2001 Chrysler 300M

changed waterpump, thermostat, radiator(old Radiator cranked) on tank, and res tank. took out plugs crank get mist stream smells more like gas then antifreeze
let car idle for 2 hour stays at mid cold hot no overheat
drive 2 miles temp shoot up to hot

Asked by for the 2001 Chrysler 300M
sounds like a head gasket to me.have you checked the fans?