If your talking about a Turbo dodge.. it can't do anything but good. I'm not entirely sure.. but even on a stock TD I think you could easily gain around 50hp... maybe more... not to mention a much faster spoolup.
http://www.quicktimeperformance.com/QTEC/index.html
http://www.mccordcg.com/mpp/mpp.htm
http://www.quicktimeperformance.com/QTEC/index.html
http://www.mccordcg.com/mpp/mpp.htm