Problem with brake swap.

Ive got a 67 Valiant with a 73-up K member. So, disc on the front and the rear has bigger drums. 11 inch Im assuming, 8.75 rear end. Manual brakes. My issue is I have no front brakes. All this work was done when I bought the car, so i have no idea whats needing done. The brakes lines are being ran through the original dist block. Am I needing to get a adjustable prop valve to increase front pressure?