How big of a trans cooler do I need? Car is a 3200 lbs with driver, 90% race 10% street, 727, 8" converter, ~530 hp small block. I'm using the trans cooler that is in radiator currently...do I need more?

I just cooked the clutches in my trans, but it was 7 years old, so it was about due for a rebuild.

67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....