Window Switch Install/Programming

Right now I installed my window switch but it is not working properly...The solenoids are not opening at the rpm or whatever rpm I set them at. I have my wiring for my nitrous set up like this....

http://img75.imageshack.us/img75/2940/wirediagramzg7jm9.jpg

Now the next question is do we set our cars to 8 cylinders under the window switch or do we set them to 4 cylinders?

Also I am using a Harlan Egineneering Window Switch...

http://www.harlan-engineering.com/store/window/Instructions.pdf

Just wondering about these things since this is my last thing that needs to be done before I can spray and fill the bottle.

Thanks,

Dan