Originally Posted by johnnye23
I hope you found the problem but I am doubtful that is why water was in your cylinders. A common practice with sprint cars to remove all fluids in the cylinder before starting is to roll the engine backwards thus by reversing engine rotation all fluids are pushed out the exhaust, again I hope you found it but Im not convinced.
Sprint cars don't have wet exhausts. His marine manifolds have water flowing over the internal exhaust pipe. With the pipe sucking air in, naturally it sucked the manifold cooling water as well.