92 xj has new radiator clutch fan and electric fan aftermarket thermo housing w/out thermostat still boils on trail. what to do push fans anyone else have this problem?

well I do know that a high HP motor in a older muscle car likes to have a T-stat to stay cool while cruising around slow. It allows the water in the radiator to sit a slight period and cool down before being pushed in to the motor to cool it. May try a 160 or if it was me a 180deg t-stat....