This is a modification of ride5000's hybrid MBC/EBCS setup for use with dual-port EWG. Hopefully someone will find this useful as there is not a lot of info for setting this up (I found nothing actually).
Same basic pro's as the original single port method, except, depending on WG spring you will have much greater range of adjustment.
You get to use the top port.
Boost shouldn't fluctuate as much, as both ports are fed from separate boost sources. (In theory anyway)
Need to tap for a second boost source.
Basic setup using modified Grimmspeed EBCS (1/4" barbs) and 6mm vacuum lines:
Fisrt boost source (turbo nipple) goes straight to SIDE EWG port.
Second boost source (I tapped intercooler) goes to EBCS port 1.
EBCS port 2 gets teed to TOP EWG port AND MBC input (the port on the end).
EBCS port 3 gets vented (I used sintered filter).
MBC exit port gets vented (the port on the side).