QuickCar's Professional Performance Harness for dual ignition box applications comes complete with 2 ignition box connections, 2 coil connections, 2 magnetic pickup connections, tach output, starter solenoid hook-up, and is a direct fit to QuickCar's Dual Ignition Box Switch Panels (50-1711, 50-1713, 50-711, 50-7411, 50-7611, 50-7711, 50-7713, 50-7911) With any of these QuickCar Switch Panels, this harness becomes a complete "plug-n-play" option for flawless ignition wiring. Comes complete with MSD coil adapters and opposite ends for tachometer and distributor/crank trigger to make installation simple.