The fuel pump I saw was a Mikuni 3 outlet.
If I had to guess...
One inlet for fuel, one inlet for pulse/vacuum...one outlet for each carb and one outlet for the fuel enrichment.
I'd be talking to them before I bought mine. I already run a fuel pump, so I'd run an aluminum tank, add an extra fuel valve on the other side, and run a different fuel pump ONLY for the NOS Enrichment...probably a second pump like I have now. I'm positive the fitted barb I have in my cylinders supplies enough vacuum for both pumps...so, it should be as easy as an extra fuel valve in the tank, run the push button to the bars, mount the nozzles in the air filters....push and spray...LOL.
I'm gonna have McFly cut me another stock head with 22cc domes to get my compression down for the spray...I think 175 to 180 is too much...my guess.
I'm working on ARP head studs too.....