[G&R's57GMC]

I just read the entire build ... Great Job , looks great and you can proudly say you did it all !

That said I noticed you have the adjustable proportioning valve in the Front brake line ! This should be in the rear brake line . Remember the master cylinder front outlet is the one closest the firewall. Also the reservoirs on 4 wheel disc brakes should have equal capacity. Yours appears to be for a disc / drum system. BTW the drum side has a 10# residual valve builtin the M/C. This would cause the front disc brakes to drag on your setup. I hope this helps you.