I agree with this 100%. These cars do NOT have big radiators, and The twin 1.25 tubes in a nice aluminum radiator is (also in my opinion) the best you can get. 4 copper/brass rows are not nearly as efficient, and unless they randomly have success based simply on increased capacity, there are better options like Griffin, or others out there. You have to pay for a good radiator for these cars on the cusp of 500 HP. thats what i've come to know from real world experience also. Of course fans, shrouds, even timing, all come into play, but with only 26 inches to play with...you're starting with a big handicap with a copper/brass.
