FINALLY found an honest repair shop....Andre install factory recommended parts. The job was needed on my Ford van. The spark plugs became loose. They installed new plugs, torqued then, gave me the old ones back with some data on with ones were loose. I've had three spark plugs blow out the threads on these heads in the past 1.5 years. Typical on Ford vans & trucks... Bottom line, I've found an honest business that relies on quality, old school workmanship. THANKS ANDRE and Stephanie...