[Art Hill]

I have a 94 Z28 LT1 my heater only blows warm air not hot like it should be, the radiator is full with water and antifrezz and holding well not leaking or loosing any water and i smell no coolant loss, I bleed the air out useing the bleeder screws at low and hot running tempeartures, and water is still up to full level in radiator and resivor. Can any on help??