These Hypertech coil, cap, and rotor kits are capable of increasing the output voltage of your coil, so you can gain more power and fuel economy. The Hypertech kits are designed to give you a steady, hard-hitting spark throughout your car's rpm range, and will fit the distributor housing tightly, to install easily with no modification. So, if you want more power in an easy kit, then you need to get one of these Hypertech coil, cap, and rotor kits. Ignition Coil Included: Yes Coil Style: In-cap Maximum Coil Voltage: 53,000 V Distributor Cap Included: Yes Distributor Cap Material: Alkyd Distributor Cap Color: Black Rotor Included: Yes Coil Dust Cover Included: No Spark Plug Wire Retainer Included: No Adjustable Rev Limiter: No Ignition Module Included: No Adjustable Vacuum Advance Included: No High Performance Spring and Weight Set Included: No Quantity: Sold as a kit Notes: Designed for tuned port injection engines only Distributor Tune Up Kit, Power Coil, Cap / Coil / Module / Rotor Small Block Chevy MPN: 4052 State Restrictions: CA