Best way to Prep Stock 5.9 Magnum For Boost?

He's most likely referring to the Cummins isb 5.9l turbo. It is a common engine in dodge pick ups. The more recent dodges run 6.7l isb engines with vgt's (variable geometry turbo). on a side note Cummins does not build a 10 liter truck engine. The common truck engine is the isx 15l and the less common isx 12l.