Engine overheating

I have a 1970 dodge dart with a bone stock 318 magnum out of a 98 jeep, 727 transmission, No A/C. the car keeps overheating just sitting in the driveway idling, it gets so hot that you can see steam coming out of the valve covers and everything is HOT HOT HOT. Previously the thermostat was stuck so i removed it completely, it seemed like it helped at the time but that doesnt seem to be the case. Im thinking about completely gutting the radiator and getting a new one...Looking for recommendations in what the best radiator would be to keep this thing cool. I dont know much about fans, it has a fan blade connected to the motor that is belt driven, no shroud. I included under hood pics of what i currently have going on17499140_10206452818039215_6428618999191020973_n.jpg 22549675_10207744232123760_8996175672924324079_n.jpg 22855445_10207798592522736_2035813214_n.jpg 22855776_10207798596602838_1400584163_n.jpg