I just recently had part # 12200AA430 fail under 4K. All miles have been break in miles as I haven’t been tuned yet (quarantine is preventing tuner to come on island). Knock values shot up after getting gas one day. Had a friend confirm that I wasn’t just hearing things. Pulled the motor to find that my crank broke on #5. Ben hunting for a 12200AA370 but seems no one has old stock