Spark Plug Install Turns Into Full Blow Cleanup.

[lexusloversc400]

Great site guys!!! My 2 hour spark plug install turned into a 6 hour engine clean up with toothbrush and lots of rags. She looks/runs great!!!! One question ... both spark plug tubes closest to firewall had fine white residue. Plugs were fine. Where did this come from?

[dcfish]

Nice Clean Up Job