ran into an issue today. the motor i put in this jeep is out of an 85 blazer. the heater set up on it has the hot water coming out of the intake manifold next to the thermostat, then returning to the tank on the radiator, not back to the motor. well, the aluminum radiator in the jeep does not have a port to return to. does anyone know if there is a spot to return to on the motor or if i can simply plug the heater hose outlet next to the thermostat? worried i might get air trapped or something since i have 0 experience with SBC motors.