• Moroso Adjustable Vacuum Advance Kit 72315 Photo - Primary
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Moroso Adjustable Vacuum Advance Kit

Moroso Adjustable Vacuum Advance Kit

sku: 0B2ZP | mpn: 72315
$62.81
$62.81 $62.81
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Emissions

This is not an emissions item.
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Adjustable Vacuum Advance Kit

Fits: 1975-'81 GM HEI Distributors

Description

  • Allows you to change the amount of ignition vacuum advance for maximum part-throttle performance while preventing harmful effects of spark knock (detonation)
  • Dial in as much spark advance as conditions permit-add more advance under light load conditions to improve throttle response and fuel economy, or limit spark advance in high compression engines and high load conditions to eliminate knock
  • Built-in stop prevents the adjustment screw from "backing out" like other designs
  • Perfect companion to Moroso HEI Advance Curve Kit No. 72300
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