318 build problems & new direction

My 367 has a cast 360 crank, and I have been abusing it since 1999; and it was a 1971 crank to start with. In it's current iteration the car goes 93mph in the 1/8th at 3467 pounds and 900ft, right around 400 hp, if my math is right.
So in my case at least,whoever said that SBM cast cranks were good to 400 was absolutely correct,lol.
No camera, so sorry no pics.