GMC Sierra 5.3 P0307 Clyinder 7 misfire Prognosis/ FIX

In this video I explain the customer complaint of engine running rough and found misfire, Thorough check list to trace down misfire, showing the failing part and why it causes misfire, and some helpful tips to let you preform the job yourself. Please share this video, this is the only video I found on helpful tips and tricks on removing the drive side cylinder head. Thank you