22” or 26” Champion ? Can’t decide

73 Duster with warm 360.... I’ve put in too weak of a radiator in years past and I don’t want to go through this especially on engine break in coming up. I’m not worried about mounting holes not lining up. But I don’t want to butcher my lower rad frame on the car. Drilling holes is one thing, bashing rad support and sheetmetal is another. Has anybody got one last word to say about this? Need to order fairly soon. Thanks.
We have a 26" radiator that is literally identical to the one posted by RichardJ19 only in aluminum. Since we are a sponsor, would you consider ours? I was going to PM you with a special price but your inbox appears to be full.

Chris