The motor I was running before was flawless for 3 1/2 years at 760hp. Then this fall the cam broke in 4 pieces. We tore the motor down and there was no other damage done but thought that it would be a good time to step up the power level. I was a little nervous running that much power from the stock block and it should have had a roller cam in it. We were just expecting too much out of the flat tappet cam.