I've got a hot rod project i'm working the kinks out of it has drums all the way around and the master cylinder is leaking and needs rebuilt. Looking into the mc in the car, it's a dual mc with this cast number 5452810 says its a GM part. The previous owner told me he knew it was a gm part and possibly from a vette. This would mean it was made for all discs and doesn't have the residual valves for the drums. Rather than adding the valves to the lines and rebuilding the mc can anyone recommend a mc i can use for a 1600lbs roadster, 4 drums and mc below floor?