I'm planning to use the blacktop head and yes its a great thread I have read a few things that refer to mk3.5's specifically I didn't want to cloud his thread, so the st170 sump works with Mods to clear no problems, so am I right in understanding there is no way to get around the water pump so you can't use the three pulley setup as you would with a cvh alternator with zetec pulley running the pump off the crank, it seems to be a directional things I assume