Ok so there are 6 wires coming out of the dual stage RPM switch.

Orange - will not use because it's only a single stage kit.
Yellow - goes to terminal 85 on the solenoid relay.
White - goes to the keyed 12v source off the relay
Green - will go to my tach output on my Mallory 685
Black - Ground. DUH

BLUE - WHERE THE HELL DOES IT GO!!!! lol

Tryin to hook it up as we speak and run all my wires, but I don't know where to hook up the Blue wire for the TPS WOT switch. Any help would be appreciated.

 

https://ls1tech.com/forums/nitrous-oxide/901508-dual-stage-problems.html
post # 3

Do you have a WOT switch?
If not you have to hook it up to the TPS wire thats on one of the plugs on the throttle body.Not completely sure which one but someone should know.

 

I don't have a WOT switch.

 

Run a wire by the throttle body for now.Then when someone knows the color hook it up.

 

Found it
https://ls1tech.com/forums/nitrous-oxide/501965-nitrous-related-wiring.html
post #12,last picture
Its the blue wire in the bottom plug on the throttle body.

Hope that helps you