Description
A weak ignition coil is a silent performance killer—inadequate voltage means misfires, sluggish throttle response, and unreliable starts, especially under boost or high RPM. The Proform GM HP 50,000 Volt HEI Coil delivers the electrical punch your engine needs to maintain consistent spark timing and combustion efficiency across the entire power band. Whether you’re tuning a street machine or running on the track, this high-output coil ensures reliable ignition when it matters most.
- 50,000 volt output
- High-output E-core design
- Coil-in-cap configuration
- GM external coil mount
- Black powder-coated finish
- Bolt-on installation
- Sold individually






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