Well all fixed. Number two piston split. Pulled the motor at the mooring without the head on it and dropped into the Rib. Nova Automotive checked it tested it preassurized it etc etc.... Only had to by piston, pin, clips and gaskets. Put it back in ( amazing how well the main halyard works as a hoist at the mooring) and it fired right up and sounds great. It should after working on injectors, injection pump etc etc.. My i sure do know that little 2GM now!! Oh well raced Sunday and will get a few more weeks out of summer yet. Greg