Just replaced clutch, clutch master cyl., and slave cyl.--along with brake master cal., and power booster. Bled everything but the brake peddle seems really spongy yet. Started car and stepped on brake peddle--goes to the floor and then the engine starts running really rough and almost kills. Any suggestions? I am thinking that there is still air in the lines creating the spongy peddle, but what is causing the engine to stall out? Thanks Ed