Cartek and a few other poeple talk about wiring in a relay to the iat so when you arm the system it retards timing. Does anyone know or could explain how to do this?

 

you have to have a retard box or ignition system that has retard capability. then wire a window switch that will activate the system through a relay. when the relay is active, you want the n2o and fuel solenoids to be active, and the line going to the retard box or ignition.