Trans cooler size for dragracing?

[wedge5]

1. I know bigger is better! I have a cooler on the car now that I used for the street but was wondering if it is enough for racing? I got it along time ago so I can't remember the GVW but was thinking it was 18,000. Should I just use it and see how it cools or is it too small. I will be using the car mostly for T/T and some bracket racing. 650ish hp and a 4000 stall, no transbrake

 

[SUPERSTOCKRACER]

any pictures of it?
heres what i run on all my race cars.

 

[Manifold]

Wouldn't a trans fluid temp gauge be the best way to tell if a cooler is doing a good enough job? Don't forget, being too cool is bad.

Another question along these lines: Which is better/more efficient, a tube-and-fin style cooler or a plate cooler?