Two things. You would improve cooling by moving the radiator forward and mounting the fans behind it. You lose about 20% efficiency when the fans are trying to push the air rather than pull the air through the rad. Second, anything more than 2 rows is a gimmick. I had no problem keeping my blown Hemi cool in Florida with a $200 Howe 2 row 19 x 28 rad. What helped a lot were the electric fans mounted to a sealed shroud.