Radiators: Is 22" enough for 400 HP?

So, since nobody asked, I will!! What is the core support made for??? If it's only a 22" opening, a 26" radiator will do no good unless you cut your radiator support to allow the entire radiator to have air flow! Unless it's a car you don't mind cutting, you can and will find a 22" radiator that handles 403hp no problem!! I believe my brother is running a 22" radiator in his 69 Dart with a 416 that's pumping out well over 400hp, no problems in the cooling dept that I've heard!!