Description
Description
Adjustable Vacuum Advance; GM/HEI Distributor w/Vacuum Advance;
Comes with detailed instructions. Permits infinite adjustment. Instantly increase your horsepower. Maximum possible spark advance. Not legal for sale or use in CA.
Features & Benefits
- Adjustable Vacuum Advance
- Increases Horsepower And Throttle Response
- Includes Allen Wrench For Adjustments
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