All my troubles started when i broke a spark plug off in the head.. took it apart forgot to mark the timing chain and cams. helicoiled the spark plug with the head off and somewhere along the line my machinist lost a few of the valve pads now its back together i have one cylinder out of spec valve clearance wise on the intake side. and i believe the timing is correct.. starts right up out of water and will redline no problem.. sounds great with no studdering or sputtering. In the water i only get 5000 rpm at 14 mph. no alarms or trouble codes any ideas?? ant help would be appreciated