- Ignition & Electrical
- Distributors
- Vacuum Advance & Advance Curve Components
- JEGS Adjustable Vacuum Advance for HEI
Fine Tune Your Ignition For Optimum Performace
JEGS Adjustable Vacuum Advance for HEI replaces the OE non-adjustable unit. Allows you to change the amount of ignition vacuum advance for maximum performance while preventing detonation. Improves fuel economy, throttle response, horsepower, and performance. Includes easy-to-follow instructions.
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Adjustable Vacuum AdvanceFor GM V8 HEI Distributors Requires a 3/32 in. Allen Wrench for Adjustments Sold Individually
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$16.19
$13.22
SAVE $2.97
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