1997 GMC Yukon Q&A

1997 GMC Yukon Question: throwing code p0306? new wires plugs rotor cap o2sensors and mass airflow sensor

this model has throttle body and distributor high missfire when accelerating -
Answer 1
What did the plug cyl. #6 look like when you took it out ? was it oil fouled? was it indicating a 'lean' misfire? Compression & valves/rockers good? Vacuum leak from intake? -
Answer 2
possible coil -