ok so the machine shop topped a few valves and I have my clearance, also had them re deck the head. Turned out great. Got it all back together and it fired right up, no misfire. However there is a strange clicking sound coming from the valve cover, almost like one of the cam brackets is lose...and I have a P0340 crankshaft position fault code thrown. Gonna pull the valve cover and double check my torque on the bolts.