1987 toyota cressida carb help,please.

hi,i just bought a used 1987 toyota cressida from a friend.as i was
driving it,i noticed that the gas pedal gets kinda hard to push down
when u accelerate.i looked inside the engine,and i guess its one of the
2 cables running to the carbuerator.the one cable is kinda bent and the
other looks ok.i was just wondering if any auto parts sell those cables
so i can fix it?i dont know the technical name for it,but if anyone
knows,that would be great.also how hard would it be to fix.thanks