What water pump pulley with smallblock procharger?

Hi all! I got a procharger for my 360 Dart. Iv been peicing it together to see how everything will fit. My question is in the instructions the diagram shows the alternator,water pump and crank being a single driven unit and the procharger being seperate. Right now the alternator and WP are seperate driven. What water pump pulley do I need? Obviously one with a longer back spacing. Here are some pictures of the project.



Stock WP pulley

Your pulley looks like it may be from a truck. The correct one looks similar but is deeper.

Bouchillion and Mancini have them new.



http://www.bouchillonperformance.com/BPEpulleys.asp

yeah, easy enough to find. Try a yard or order a new one.