Pertronix D1021 - PerTronix Flame-Thrower EST Distributors

Performance EST (Electronic Spark Timing) distributors for GM late model computer-controlled applications dramatically improves high-RPM performance. When teamed up with Flame-Thrower E-core coil, spark plug voltage is increased by more than 40%. These distributors are direct drop-in replacements for most 1987-93 GM cars and 1987-95 trucks.