Borgeson coupler help

UPDATE:

I finally got around to do getting all of this fit along with the Flaming River stainless u-joint. Now there's plenty of clearance. One little note: The Borgeson power steering box certainly cleared up all kinds of space. But it sat high enough that the upper corner of the unit would tap against the engine block when starting. So I fabbed up a 1/4" aluminum engine mount spacer and wedged in a 3/16" square of Delrin between the engine block and the steering box and now that problem is solved.

The first photos shows the newfound clearance. The second shows the hydrobooster and headers in place.