how much the rjc mega cooler will help

What do you have now? Which turbo are you running and what power levels do you think you will get to in the future?
 
I have a new pt-6152 218/212 roller cam trans built by Brian Hofer 3200 stall from PTC ported heads
 
it matches well with it have not try it with the new set-up but with the pretty much stock engine set-up it worked well
 
Imho

If I were in the market for a new one - that would be it.

I am sure it is more then needed for what you are doing right now but I do not see it hurting and it will be waiting for more
 
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