Allstar Performance Spark Plug Indexing Tool R040003S 1961-1966 Oldsmobile Starfire

1961-1966 Oldsmobile Starfire

9/16 in ID

Side A is AN-10

plus has a smaller shell to fit a Youth Graphic’s body

Bolts are included for use on tubing up to 1-5/8"

Allstar Performance Spark Plug Indexing Tool R040003S 1961-1966 Oldsmobile StarfireIndexing positions the ground strap of the spark plug properly for best piston dome clearance and un shrouds the electrode for a more even burn and possible gains of 5 15 horsepower. Works with flat gasket or taper seat 14mm spark plugs. Includes instructions. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over