Radiators: Is 22" enough for 400 HP?

While the old 19 inch radiator was out, I did take the time to mock up the new 26 inch radiator.

I was able to line up two of the top holes of the radiator brackets to pre-existing holes in the core support. They lined up almost perfect, but I did notice that the radiator was a bit crooked. I don't know why that is.

I also noticed that the radiator hits the bottom of the core support on the drivers side. The passenger side, I'm able to stick a finger between the radiator and the lower part of the core support.

I did try closing the hood and it appears that there is no interference, but it's a little hard to tell. I'm guessing my '74 Duster hood has more clearance than earlier model hoods.

What should I do about it being crooked? You'll see what I mean in the pictures.

I'll attach some pictures of my son and I mocking it up.