Here is the procedure for bleeding. Did you have the bleeders open to change the brakes? If not then you should not have to bleed them. I have had some problems with aftermarket brakes for allowing the pedal to be soft while braking. When this happens I install the Ford brakes and the problem goes away.

Bleeding

Vehicles with anti-lock brakes

1. Disconnect the battery ground cable. All Vehicles WARNING: Brake fluid contains polyglycol ethers and polyglycols. Avoid contact with the eyes. Wash hands thoroughly after handling. If brake fluid contacts the eyes, flush the eyes for 15 minutes with cold running water. Get medical attention if irritation persists. If taken internally, drink water and induce vomiting. Get medical attention immediately. Failure to follow these instructions may result in personal injury. CAUTION: If brake fluid is spilt on the paintwork, the affected area must be immediately washed down with cold water. NOTE: Make sure that the vehicle is standing on a level surface. NOTE: The system consists of separate circuits for each front and diagonally opposite rear wheel. Each circuit can be bled independently.

1. CAUTION: The brake fluid reservoir must remain full with new, clean brake fluid at all times during bleeding. NOTE: Start bleeding the brake system from the furthest bleed nipple from the brake master cylinder. Install the bleed tube to the bleed nipple.
   
2. Immerse the end of the bleed tube in a bleed jar containing a small quantity of approved brake fluid.
   
3. Position the bleed jar base at least 300 mm above the bleed nipple to maintain fluid pressure and prevent air leaking past the threads of the bleed nipple.
   
4. Loosen the bleed nipple by one-half turn.
   
5. Operate the brake pedal fully (pumping brake fluid and air into the bleed jar) and allow the brake pedal to return to the rest position.
   
6. Fill the brake fluid reservoir.
   
7. Continue operating the brake pedal until air-free fluid is being pumped into the bleed jar.
   
8. With the brake pedal fully depressed tighten the bleed nipple.
   
9. CAUTION: Make sure the bleed nipple cap is installed after bleeding the brake line(s). This will prevent corrosion to the bleed nipple. Failure to follow this instruction may result in the bleed nipple becoming seized. Repeat the procedure for the remaining brake lines.