help with this porportioning valve

[70RR2GO]

This is the one I purchased for my 70 roadrunner that had drum on the front. I see a lot of people selling this one for the front disc conversion. Looking to see if anyone has a picture of their install with this type on can point me to a picture or sketch. Thanks for any help. The ugly one was off the car with the old drum set up.

 

[Matrix2]

The picture looks like this one available at inline tube, http://inlinetube.com/Prop Valves/BLK247.htm, except for the placement of the two valves. If the same, they have instructions on how to hook up. A front disc conversion needs a combination valve that includes a proportioning valve to the rears, a metering (or hold off) valve to the front, ideally a residual pressure valve (often part of the master cylinder) to the drums, and the pressure differential switch (which illuminates the instrument panel brake warning light). The old one is a simple drum/drum distribution block with a pressure differential switch.