I connected the wires to the battery box.  Connect the one from the solenoid to one side and the two from the battery and the alternator to the other side.  I just connected the lever kit to the battery box, since I was pressed for time to get it ready for a trip to the drags.  You can build a nice bracket to do this, but I doubt that I will ever actually use it, and it works fine.  More than likely I'll just leave it the way it is.  

Since my car is a street car I didn't want to drill any holes in my bumper or any other part of the car that was visible.  The NHRA's site had a great suggestion, to buy a spare tail light assembly and just drill a hole in that.  I found a used one on Corral for $20 and followed their suggestion. It is great for the strip, and when I get home I just put the stock tail light assembly back on.  Looks pretty clean, and passes tech!