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Tuneable Mechanical Advance Kit with Silver Spring For Harley Big Twin 1970-79 & Sportster 1971-79 Pack of 10

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MSRP: $44.65
$27.99
You save $16.66
SKU:
17559
Availability:
In stock
Weight:
32.00 Ounces
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V-FACTOR TUNEABLE MECHANICAL ADVANCE KIT FOR BIG TWIN & SPORTSTER
Inc. NY Sales Tax
Ex. NY Sales Tax

Description

Weight: 0.02lb

  • Designed to outperform and outlast anything out there, this tuneable mechanical advance unit is the finest available.
  • It features a heat treated stainless steel base, pre-lubricated heat treated weights and three sets of color coded springs that allow you to select three different advance curves to meet your engine's requirements.
  • Tuneable Features: Black Spring - Allows full advance @ 1400 RPM (same as OEM) Silver Spring - Allows full advance @ 2000 RPM Gold Spring - Allows full advance @ 2600 RPM
  • Advantages: Eliminating spark knock and detonation means longer engine life and more low end horsepower and torque.
  • The only mechanical advance unit kit that allows you to adjust your advance curve. A must if you have performance work done. Even minor performance changes can require a different advance curve.
  • Made by V-FACTOR
  • Silver Spring allows full advance @ 2000 RPM

Fits: Harley Big Twin 1970-1979 & Sportster 1971-1979 Package of 10

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Customer Reviews

1 review

  • 5

    Harley ignition silver advance springs

    Exact fit works as supposed to

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