My disc brake kit arrived. (YAAAAYY!) I went with the 1 1/8" M/cyl, since that was the original size for front discs. Now I find I need a residual pressure valve for the rear brakes. I'm thinking of fitting a 10 PSI one, downstream of the proportioning valve. On the line to the rear drums only, of course. Can anyone offer advice re fitting, brands, position, etc? Going on a '69 Skylark, was factory power drums, now going to be a power disc/drum setup. Thanx in advance for all replies. Chris
