I have a 7531 ignition I want to pair with my Nitrous Pro Flow controller. The controller works off of the grounds as the solenoids have a constant 12 volt source. The controller breaks the grounds to open and close the solenoids. I want to wire my msd to pull timing instantly on the first stage from the release of my transbrake, and then I want to pull timing when the 2nd stage comes in. Is there any way to do this since the controller works off of grounds?