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Since 1952

Performance Distributors 122222DUI Rotor Bushing

Performance Distributors 122222DUI Rotor Bushing

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Replacement rotor bushing for HEI dustributors.

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Adjustable Vacuum Advance Kit, GM HEI Distributor
(Part #28799600)

Adjust your GM HEI distributor for any driving condition. This kit allows you to change the amount of ignition vacuum advance for maximum part-throttle performance while preventing the harmful effects of spark knock (detonation). Dial in as much spark advance as conditions permit — add more advance under light load conditions to improve throttle response and fuel economy, or limit spark advance in high compression engines and high load conditions to eliminate knock.

  • Built-in stop prevents the adjustment screw from "backing out" like other designs
  • Easy to install
  • Includes 3/32" Allen wrench and easy-to-follow instructions

287-99600 Instructions (PDF)

HEI Advance Curve Kit
(Part #550929)
                        Modifies any GM HEI distributor with either clockwise or counterclockwise rotation and offers plenty of curve possibilities.  Center plate eliminates overcentering of centrifugal weights.  Comes complete with detailed instructions. 

NOTE: Installation of this kit may alter emission levels.

550-929 Instructions (PDF) 

HEI External Timing Adjustment Knob
(Part #91012344)

This little jewel replaces the vacuum advance on an HEI distributor. This allows you to change the timing without having to loosen the distributor - just turn the knob.

Fits V8 engine HEI distributor only.

Vacuum Advance Lock Plate
(Part #91012339)
                        Fits HEI distributors. Fastens to the distributor base and pickup coil.
Accel 170072 HEI Wiring Pigtail
(Part #105170072)

Finally, a dual HEI connector for GM HEI “Coil In-Cap”. The Dual HEI Connector helps clean up your engine bay by eliminating the use of single spade connectors to make battery and tachometer connections. Also holds the 12 volt and tachometer wires securely in place. Made from hi-temperature durable plastic to withstand all extreme conditions of an engine bay. The easily seen, 10” long, red and green wires identify battery and tachometer.

  • Wire your HEI distributor like the factory
  • Red and green wires identify battery and tach leads
  • 10" long
MSD 8861 GM HEI Module Bypass Cable
(Part #5478861)

Enables the customer to plug an MSD 6 or 7 series ignition or timing accessory directly into the magnetic trigger inside a GM HEI distributor.

MSD 8412 Low Resistance Bushing for HEI Distributor
(Part #5478412)
                        With the introduction of our 20 Amp Extreme HEI Module, we needed an HEI Cap and Rotor that could withstand the high output. The answer was to mold our own HEI Cap, Rotor and Coil Cover. The Cap and Rotor will fit our HEI Pro-Billet Distributor, PN 8365,
    MSD 8428 GM HEI Weight And Spring Kit
    (Part #5478428)
                            This kit will help you achieve the solid ignition timing you need! The Kit comes with new advance weights, springs to set the rate of advance and new bushings. This is designed for the Street Fire HEI and stock style HEI Distributors. (Not for use with Billet and Pro-Billet MSD Distributors)

    Installation Instructions (PDF)

    • Fits Street-Fire HEI
    • Fits Stock Style HEI Distributors
    • Not for MSD Billet and Pro-Billet Distributors