Here's where I'm at with this one... Misfire cylinder 6 on 1996 3.8. I can feel the car lacking some power at the line, but power picks up at around 2500 rpm. I have changed the plugs, wires, coil, and ran seafoam through as to clean up my injectors. Pulled the cables to reset the system, but still im getting p0306 from the computer. Next I plan to do a propane enrichment check around the plug to check for cracks. It's cylinder specific so I doubt vacuum line as it would lean out the bank, rather that pointing to that one cylinder. Any other ideas for this one?