Has there been any reported engine failures due to not having the crank support provided by the stock lower vs a Metco kit. I've got a 4lb lower metco on the car now but either going back to the stock caged lower or i can just purchase the stock size ring for the Metco hub (2.9 whipple soon). Just trying to get opinions on which to go with. My good buddy told me "There is a reason the factory did not just put a pulley on there without support?" What does everyone think?