During 2018 condition inspection the #2 spark plug hole threads stripped before reaching 18 lbs/ft. GM lists 18-22 lbs/ft. However, Corvair.com suggests 7 - 10 lbs/ft. Enlarged hole and inserted a perma- coil 2214-N from Thread Kits Company. Installed new AC R44F and torqued to 10 lbs/ft.
