I think the three row is better, ya se the tubes on " some" units get smaller as the add rows.ie. the four row is the same size as the three evev though it may look larger in mass. The volumetric flow is decreased {due to the small diameter via the core} thus , higher psi & air flow is needed for the same overall effect; less the addition of the time\area\temp avilabel
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Restored 1965 Coupe
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