PerTronix D8000 Flame-Thrower Black Cap GM HEI Tune Up Kit for Chevrolet/Cadillac Kits include street-strip 4-pin module and coil combination Custom Flame-Thrower coil cover, adjustable vacuum advance canister, hi-performance advance kit Wire harness and capacitor, and complete installation hardware Race Only tune-up kits include matching coil and module, wiring harness, vacuum lock out, advance weights, springs, bushings, cap, rotor, dust shield, and necessary hardware