My 1955 Thunderbird has stock drum brakes and a dual drum brake master cylinder.  I rerouted the brakes lines without a proportioning valve.   I rebuilt the stock brakes from front to back and adjusted them as close as possible.  My pedal is firm and high. These brakes are less than adequate for today's traffic.  I see all kinds of front disc brake options from Granada spindles to high dollar kits.  I don't want to change the front steering geometry. I wish to run stock 15" steel wheels.  I may upgrade to 15" aluminum wheels in the future.  Do I need power brakes as well? What is the best option for my money?