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JEGS Adjustable Vacuum Advance For GM V8 HEI Distributors

555-40003


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Adjustable Vacuum Advance For GM V8 HEI Distributors
$14.99
$13.99
SAVE $1.00
More than 10 available
Adjustable Vacuum Advance
  • For GM V8 HEI Distributors
  • Requires a 3/32 in. Allen Wrench for Adjustments
  • Sold Individually
  • Ships
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    40003 is rated 3.8 out of 5 by 6.
    Rated 5 out of 5 by from Works as advertised. I was not happy with the hot start function of the 350 HO crate engine I have in my GMC S15 pickup. I decide to install the HEI Adjustable Vacuum Advance to see if this may help the situation. The install and setup was super easy, took about 45 minutes. Results were excellent. Works as advertised.
    Date published: 2018-02-15
    Rated 5 out of 5 by from nice hard product to find nice product, hard to find other places, shipped very quick !
    Date published: 2016-04-09
    Rated 1 out of 5 by from Easy to install, 1 degree of adjustment Title says it all. Mostly stock engine with 16 inches of vacuum, the checked the advance at multiple settings and achieved only 1 degree of timing difference.
    Date published: 2019-05-28
    • y_2024, m_11, d_13, h_7
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
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    • clientName_jegs

    Does this vacuum canister have adjustable rate or just degrees?

    Asked by: j08fish005
    This is made to adjust the vacuum in degrees - here is a link to the instructions for more detail. https://www.jegs.com/InstallationInstructions/500/555/555-40003.pdf
    Answered by: Rusty B
    Date published: 2018-12-04

    will this vacuum advance fit my pro billet msd distributor 8361.i dont think that my dist has adjustable vacuum advance

    Asked by: ellie
    This will only fit the original GM HEI distributors.
    Answered by: Rusty B
    Date published: 2018-05-16
    • y_2024, m_11, d_14, h_8CST
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