Heater/Defrost Issues

[mlb200180]

Ive been trying to get my heat workin. My windsheid isnt defrosting all the way and the other windows keep fogging. I replaced my blower motor in the fall because leaves were getting in the heater box and the motor failed. I had a leak in the core. Cleaned the leaves out and replaced it. I dont think the temperature comming out of the vents is high enough. Also I dont think there is enough air comming out of the vents compared to a newer vehicle. I think my hoses are right. Small hose from the bottom going to the water pump and big hose from the top going to the intake. QUESTION! Does the air going through the core come from the outside? Thats what it looks like. Was wondering if that has anything to do with it. My truck is a heat only cab, no ac.