[66 Biscayne]

Hey Guys, Any one know of a company/person who rebuilds/restores brake proportioning valves and the balancer block for disc brakes?. Installing a set of disc brakes off a 1970 Impala on my 66 Biscayne (I want this thing to STOP) Brakes worked great when removed, but I just want to be sure everything is rebuilt and new when installed....I hate to have to remove and do things over a second time...Thanks for any help.....Jim