Doing a conversion on a 63 Valaint 200 (front disc)

Put a 72 Dart MC on and curious to know if they came with a proportioning valve block or if the MC had in corporated.??? I cant seem to find any pictures that show a proportioning block in the motor area...

Also.. Looking for an adapter for the rear line .. I cant tell what size the rear port is on the MC it appears to be (5/16"??) and need to reduce to a 3/16 line

Any help with this would be greatly appreciated..

Rick

found this to be very helpful and to have part #'s for adpaters:

http://www.earlycuda.org/tech/dualmaster.htm