I need help. I replaced all 16 plugs and the coil pack for the misfiring cylinder when i pulled the plugs for cylinder 1 one of the plugs end was bent over and it had no gap on the plug like it should. the second plug in that cylinder was missing the end of the plug. i cleaned out the cylinder and put everything back together and it is still misfiring . i removed cylinder 1 plugs again and they were dripping with oil. does this sound like a bad valve guide.

 

Valve guide or piston oil rings.

What year and how many miles?