Well from reading up on doing the DOHC to SOHC swap i'm seeing a lot of people telling me I NEED to switch from the coil on plug ignition system of my Marauder to the coil pack ignition system. Personally I would prefer not to do this as I would prefer to have COP than coil packs. Now, can I keep my COP ignition if I use the stock T-bird computer or will i have to swap it for my Marauder's computer? It's not like it will be a pain hunting these parts down, I will have all of these parts at my disposal as they will be coming out of my wrecked Marauder so it's not that big of a deal for me to find them. Also, one other thing i'm worried about, if I have to use the Marauder's computer to run the COP ignition, does that mean i have to replace the ignition switch and everything else too to run with my chipped key? Because I thought the passive anti-theft system that is run by the chipped keys had several points where the chip had to communicate with the car, one being in the ECM. Any input on this would be greatly appreciated.