Wilwood front disks

Thinking about getting the wilwood front disks from dr diff to replace my stock disks on my 73 Dart. Question for anybody that has them how do you like them and how much weight (estimate) did you save switching?
Also Besides the proportioning valve what else would y’all recommend me replacing/upgrading if I get the wilwood?
I already have the dr diff cobra style rears on my 8 3/4.

Thanks in advance.