That pump is a monster, I would not be worried unless you want to throw on another GTX and NB/SB/Mosfet blocks. Even then I think you would want to split the loop for temps not pump power.
Tom128: How should I split the loop? Do you mean split the loop with what I have now, or split it only if I add the NB, SB, Mosfet blocks? Thanks in advance for all the input!
I think you'll be ok with 1 pump, but the others are correct, if you plan to add more to that loop, you are going to want to split it into 2 loops, or put 2 pumps on it. As it exists though, I think you'll be ok.