new radiator suggestions 73 challenger

[charger2fast4u]

i got a 73 challenger and the radiator leaks. so i'm figuring to upgrade it to a better cooling one. it has a 440 6 pack in it it will have around 500-700hp once i'm done. would like to keep it as bolt in as i can but will settle for  minor mod to fit. whats some good radiators everyone is using? ive looked at the be cool radiators and from what others say they were satisfied with them.