I'm installing a zex wet kit, I've got everything hooked up but the blow down tube, do I need to remove the plug and put it on that side? Also I have the zex window switch and tps I think I have them hooked up right but were can I find the tach wire to tap into. Also I conected the solinoids 1 side to the switch, do I need to hook the othere wire up to a ground or a solid power source I can't make to much sense to the wiring digram that they came with

 

for the blow down tube its the opposite side of where you place the -4 line to the solenoids. remove the fitting and install the blowdown tube but you have to do this b4 filling the nitrous. now for the box black is ground any shoud do, red goes to your switch on/off button, and the white wire goes to the light blue wire on your throttle body. then do what zex calls for in the instructions to activate the controller box.