Get ISTA and run the ionic misfire detection. You could have a coil going out and moving them around is just going to continue them misfiring unless you know which ones you moved where and are tracking what you are doing.
P.S. You made sure to use the stock spark plugs, ya? This engine platform can only take one type of spark plug. Also, all the coils are OEM, ya?
Please report back your findings.
