white plug goes on the back of the inlet, this is also same with black connection (see pic below) it doenst matter if these are connected
yellow plug goes on injector rail at bottom & must be plugged on or will will run crap.
the red/back wire on a ford loom is fuel pump wire but looks 2 be connected into ur realy ok (unsure why u have another?)
the 2 wires that were connected into a switch was a high/low boost switch, the brown/green wire will run all the way down to the amal valve plug. so if u plum in an amal valve & connect the switch back up u will have high/low boost controll as the flick of a switch!
that help?