Droptop,
I have been thinking about the same thing.
on my last boat I had a American turbine SD309
pump it had a prevision cast into the suction housing for a
second outlet, I called Ron at AT he told me to drill and tap
it. It was my plan to run the second outlet to the intercooler for a prochager. I sold the boat before I installed the blower. now on my Dominator pump
I am considering drilling and taping the opposite side.
Maybe I will give Ron a call and get his opinion.