[Tom Goldman]

Per the instructions for a Strange Mopar style master cylinder. The reservoirs are the same size front and rear, however the piston volume is larger on from the port closest to the pushrod.

■ The outlet port nearest the pushrod supplies the most fluid volume and should be plumbed to the calipers requiring the
most volume. Typically a drag race only car will have the largest calipers on the rear, while a street driven car will have the
largest calipers on the front. Attach lines accordingly

Since most S/SS cars have the same calipers front and rear it really does not matter although I always plumb the larger section[ closer to the pushrod] to the rear brakes.