This is part 9 in a multi-part series covering the custom 422 cubic-inch stroker engine build performed by master engine builder Bill Trovato at BTR Performance for our turbocharged 1971 Olds project called the "S71". In this chapter, Trovato takes us through the process of installing the MSD Pro-Billet distributor that has been modified by FAST to work with the FAST XFI fuel injection system. Although this video series features and Olds engine, the valuable, race-proven techniques shown by Trovato apply to any performance engine build.