Kit Contains:
4 - 1/4 Flat Washers
4 - 1/4 Lock Washers
4 - 1/4 - 20 x 3/4 Bolts
4 - 1/4 x 20 Nuts
1 - Solenoid
1 - 30 AMP Fuse
1 - 90 degree mount bracket

In most cases, the MSD RPM Activated Switch is a good choice for triggering this shifter. If you use another brand, follow their instructions for installation.
1. Attach Solenoid to shifter.
2. Place relay and RPM Activated Switch in convenient locations.
YELLOW - Not used
RED - To a switched 12V source
BLACK - Ground
WHITE - To Tach output on MSD or coil minus on factory ignition.
GREY - Terminal 85 on Relay
(This kit does not contain a Relay, but is available from BTE.)