Help Brake pedal stuck

Hey guys im drivin a 94 blazer s-10 and my brake pedal is stuck to the floor . one of my friends used to be a mech. for ford so he said it should be the master cycilder so i change it now the pedal is back the way it was but i have no braking power . i already blead the brakes and it still wont stop right .
please help :banghead:

This truck most likely has ABS. When you change a master cylinder on a ABS equipped vehicle, it has to be bled properly, or you will have poor, or no brake performance. At this point, I'd say take it to a shop that can bleed it properly. Also, be careful how you get it there, cause if the ABS kicks in and it isn't bled properly, I hope your emergeny brakes work, and you can react quickly....

ok i will thanks for the help man