The impossible to solve overheating problem

I know this might be a stupid question but are you sure the electric fan is pulling the air through the rad and not pushing, at 45 MPH it might just stall the air altogether. Anyway that fan is junk, I got a air flow meter and tested almost every fan that was rated 3000 CFM and found that none flowed more than 1500 CFM most were between 800 and 1200 CFM. I can't find the name of the fan I used but I think they are in Tn. They claimed 2650 CFM and the best fan you can buy so I got one and when I put the air flow meter on it it was 2650 and blew twice as hard as any other fan I checked, It would blow your hand away from it. And I had to get a Walker 4 core rad to keep it cool, it was a 11:1 400 chevy in a model A sedan delivery.