04 lancer es 2.0 heat problem
 

ok when I first bought my car the heat was great no problems now I have problems. When I start the car in the mornings I let it run around 15-20 mins the engine is well heated but yet I don't have very good heat coming from vents but when I accelerate to 3000 rpm then my heater will work so good to the point if u have it on high it'll burn ur face I had a new thermostat put in, flushed the entire system no clogs or anything I had the cooling system bleed only a little air pockets I'm not loosing any fluids when I take the radiator cap off the coolant is level I just don't know what else it could be please help thanx


also I just found out that if I turn the heater too full blast it stays around 60 degrees which is not hot but then I turn the heat down 1 notch it goes to 115 which is decent then I turn it full blast and rev the engine to almost 3000 rpm I get 150 degrees so something is going on not sure what though