Flow is a matter of the pump capacity and THE SYSTEM RESISTANCE> 1.5 GPM was the total system flow I saw with the stock system. I had engine shut offs due to the high IAT'[s. SEVERE ones during racing!!!

MOre flow is desired and the reason that I created the original SUPER COOLER. With that the same pump went to 4.0 GPM when the stock h/e was replaced.

Flow is a balance of the push and the restrictions. Woody