New water pump and overheating. What gives?

[Isaiah92260]

I just replaced that water pump on my 62’ 235 and now it’s overheating.
I made sure the block and radiator are full with coolant. I even went a replaced the new thermostat I put in 2 weeks ago and put in another new 180 thermostat

She still is overheating. I can’t figure it out.

Before I replaced the pump, it ran fine and stood very cool. I changed it because the bearing was bad and it was making a loud hissing sound.

What do you guys think?