Hi, in the next month I am converting my 4 wheel drum 66 to 4-wheel disc. 1LE's up front and 97 camaro rotors in back. I will be using an 87 g-body dual diagphram booster mated to a 87 b-body aluminum MC 15/16 (Instead of using my single reservoir MC graemlins/hurray.gif ).

My real question is on the proportioning valve. Should I use a 4 wheel disc prop valve (from what application I am unsure) or just go with an adjustable one for the rear? I have been through the archives but I just can't come up with an direct answer.

What did you do?

Also, right now it has the dist block that goes from front to back, I am thinking I should swap it out to one from a dual reservoir unit. I should also swap out the front brake lines for the smaller 5/16 lines that disc brake cars use, right?

Thanks!