Radiator that will fit my 64 barracuda for a 340 upgrade

I am swapping my 273 for a 340 into my 1964-1/2 barracuda automatic push button. Looking for recommendations on what radiator will fit. I am concerned about the radiator cap hitting my hood. Champion said their CC1635 will bolt right in, but I am afraid it will be too tall and the radiator cap will hit the hood. [I have aftermarket AC setup with an electric fan in front of the radiator.] What radiator is everyone else using?