Upgraded from Mosquito to Mosquito Magnum, now it overheats

Upgraded from Mosquito to Mosquito Magnum, now it overheats

I upgraded my Prusa's Mosquito to a Mosquito Magnum, including the insulator. I used the boron paste on everything, redid PID autotuning, and did a few prints, everything looked good. But eventually it jammed up. I checked the Bondtech extruder tension; it was fine. I removed the nozzle (brand new vanadium) and it wasn't jammed. I then went to feel the heat break at the top and it was incredibly hot. So heat is not being removed quick enough. I swapped to a brand new Noctua fan and it still didn't help. Any suggestions to prevent heat build up?