72 fitment aluminum radiator into a 1974?

Either work through all of the thermodynamic equations that prove what you're saying is true and post them up here, or stop making those claims. I'll even do you a solid and just let you work through the math for 2 and 3 row radiators that will fit into an A-body, because I know for a fact you can't prove what you're saying is true for all applications (there's a reason why 3 and 4 row radiators exist). You're a vendor, so I would think that you'd be able to get ahold of all the specs you'd need to do a full thermodynamic analysis.

There is one major aluminum radiator company that sells 'small tube' 3 and 4 row aluminum radiators. Every other respected aluminum radiator company has chosen to use 2 big rows instead of 3 or 4 small rows. There is a reason for that.

You've given your opinion. I've given mine. I'm not going to jack the topic starters thread each time you disagree with our opinions.

I can see you are going to make it a habit to disagree with most of our knowledge base that we are sharing. You are welcome to your opinion as I am mine. Let the viewers decide who they want to believe instead of continuing to jack the topic starter's threads by challenging my posts in other members topics.