Edit: you need to put your font on jackstands or something. Shit is dinky



Check how hard the fans are blowing, like hand between rad and motor. Now check fan strength of non overheating car with same motor. Bleed lines right. Make sure your using a 50/50 mixture and not all coolant or all water. Make sure water is Not just tap lol. Last but not least make sure your thermos not just tarded



If you can't figure out the problem, run your air on full blast heat and aim vents away from you to keep it from booming up