[71firebird400]

Hi, my '71 Firebird has manual discs on the front and drums on the rear. So far I've replaced the front and rear pads, along with the rear wheel cylinders, and master cylinder. Right now the car does NOT want to stop. I mean, most people would think something was terribly wrong if they drove my car. The tires will lock up, but it takes way too much force. I made sure to get the manual master cylinder (7/8" bore). The rotors looked new when I took them out. At first I thought it was because I didnt have a booster, but this is pathetic. For the record; I made sure to put the brake rod into the upper hole on the pedal (I believe this is the correct one). The pedal is firm, so I'm pretty sure theres no air in the lines. The car stops straight, so all the brakes are working. What do you think could be causing my problems? Should I put new lines on? Thanks.