New member here. I just started restoring my long neglected 70 Cuda. I am swapping in basically stock 440 backed by 4 speed. Planning on a self tuning efi throttle body. (Any suggestions welcome). Need a new radiator. I would like to go with aluminum. Does not have to be stock looking though would be nice. I live at 6500 ft in Denver area. Anyone have experience with additional cooling issues associated with the altitude? In my research it seems 1" or bigger aluminum tubes make a difference in general. With my expected horsepower (planning on a build that should make 425 at little above sea level) sounds like 2 rows would suffice. Making even less power at altitude but with less efficient cooling from what I understand. Will 3 rows be needed? Also research shows there can actually be too much cooling. Not too complicate the matter but have not decided on clutch or electric fan. Theory and research are one thing...who out there can share some actual street experience at altitude? Thanks.