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Vehicle Info NeededJEGSPART NUMBER: 555-40003
Adjustable Vacuum Advance For GM V8 HEI Distributors
$1539$16.99You Save$1.60
More than 10 available
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Lowest Price Guarantee- Adjustable Vacuum Advance
- For GM V8 HEI Distributors
- Requires a 3/32 in. Allen Wrench for Adjustments
- Sold Individually
- Fits gm v-8 hei distributors
- 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 3/32" allen wrench and easy-to-follow instructions
JEGS 555-40003 Adjustable Vacuum Advance for GM HEI Distributors is one of the most inexpensive ways to fine-tune for Ignition. This unit replaces the factory-installed vacuum advance and will allow you to adjust your ignition advance with a 3/32 in. allen wrench in a matter of minutes along with ignition timing providing improved performance.
Part TypeVacuum Advance
BrandJEGS
Package Height3.0
Package Width3.3
Package Length5.0
Weight0.35 PG
Part CategoryReplacement Parts
MaterialSteel
Part FitmentSemi Universal
AdjustableYes
Wrench Size Required3/32 in. Allen Wrench
Package Qty1
Package TypeEA
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