GM HEI Distributor 
Vacuum Advance

Fits GM HEI Models 1996 and Earlier
Features:
  • Fits GM HEI Models 1996 and Earlier
  • Will Not Work with Computer Controlled HEI Distributors
  • Adjustable Style Allows User To Fine-Tune The Vacuum Advance for Optimum Performance
  • Sold Each
PART# 66952C
Dealer Locator

HEI Adjustable Vacuum Advance Fits GM. For fine-tuning your vacuum advance and optimum performance.

  • Adjustable.
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