I've got the old P600B on the 408 in my dart. It only makes 6lbs of boost (compared to 10lbs with the 360), spinning to the max rpm of the supercharger. It runs the same 10.52 @ 127mph best with either engine. At 3600 pounds, that shows about 560hp on the Moroso slide chart(which is over 750 at sealevel...not saying it would necessarily do that though). The D1SC has 350 more cfm flow, and that's one of the one's that I am looking at upgrading to. My set up is from SDCE, so it mounts on the passenger side. I think the Morris setup will be easier to install. After messing with some turbo stuff though, I think that is the way to go!