That does bring up a question for p40hawker.
How much fuel is in the tank when this happens?
Does it happen when the tank is near full or toward the end of your normal flight time.
I had something similar happen recently with my airplane. Same motor TT Pro .46,
Turned out my problem was that my motor just did not like 15% fuel. It would run fine until I pushed it with some aerobatics. I went back to 10% fuel and have had no problems since.
Fuel pickup issues in your tank are the most likely cause but not the only possible one.