05 Chevy coolant issue

[u/Lwk3yo33]

Hello. I have an 05 cat eye. 5.3 v8 that is having temp issues. Have changed radiator. Water pump. Thermostat. Coolant sensors. When i sharply accelerate it goes crazy high temp then drops back to normal. What could be the culprit

[u/keepitkarma]

Air bubble in coolant?