MSD - MSD RPM Module/Chip Tester Coil-Over Shock Kit - Pro-Coil

Coil-Over Shock Kit - Pro-Coil - Twintube - Double Adjustable - 175 lb/in Spring Rate - Rear - GM A-Body 1964-72 - Pair

Air Filter Element - Pro-Flo - Round - 14 in Diameter - 3 in Tall - Cotton - Red - Universal - Each

Valve Lock - Super Locks - 10 Degree - 3/8 in Valve Stem - Standard Height - Lash Cap Recess - Steel - Black Oxide - Set of 16

Rod End - PCYM-T Series - Spherical - 1/2 in Bore - 1/2-20 in Left Hand Male Thread - PTFE Lined - High Misalignment - Steel Ball - Chromoly - Zinc Oxide - Each

MSD - MSD RPM Module/Chip Tester Coil-Over Shock Kit - Pro-CoilIf you're using an MSD ignition box or rpm module, you need to have one of these rpm checkers. Each tester operates on a single 9 V battery and is simple to use; you just plug it into your MSD ignition box or rpm module and hold down the buttonthat's it. MSD rpm module testers are essential for any racing class with rpm limitations.