I have seen a number of foreign cars in the local junk yard that have vacuum assisted dual master cylinders mounted on the passenger side of the engine compartment fire-wall.
The clutch and brake peddles swing from a horizontal bar which rotates on two bearings mounted on each side of the fire-wall under the dash. The brake peddle motion rotates the bar which activates the vacuum booster and dual master-cylinder mounted on the passenger side of the engine compartment.
The beauty of this is system is that it frees up room under the floor-board and leaves the driver side of the engine compartment clear for such things as intake and exhaust manifolds on 6 cylinder engines.
I am thinking of trying this on my 40 chevy but have not had the time.
