Allstar Performance Spark Plug Index Shims 14mm 1411Y 875" to match the width

875" to match the width of standard rod ends

Red/Black/White Piping

Scosche BaseClamp

Flush mount bracket fastens to flat panels like a frame rail or firewall

Front / 2nd Row

Allstar Performance Spark Plug Index Shims 14mm 1411Y 875" to match the widthStackable shims index spark plugs at 30 intervals up to 360, properly positioning ground strap in cylinder head for increased power and clearance between spark plug and piston. Shims are intended for use with 14mm flat seat spark plugs only. Package of 24 shims contains 12 silver 60, 12 black 90, detailed instructions, and dial chart. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find,