Monte Smith told me years ago to use a Holley Ecu. Even with a Carb. and now thats what i have. IF you think about it the Holley ECU you can use coil on plug, and have data logging as well as a great nitrous controller. The possiblities really are endless. You can control anything and with a nitrous car on the street you will want a lot of control. You can program dump valves and have crazy accurate control over timing with no fear of rotor phase etc. ITs the best you can get, and it condenses everthing into one unit. No seperate nitrous controller, data logger and ignition. PLUS you get free software updates from Holley. The new V6 has some awsome features for nitrous contol and the dump valves. Take a look and youll see how in th long run it will be way worth it.