GM HEI Distributor Vacuum Advance – Adjustable
SKU 66952C
C$26.27
In stock: 1 available
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GM HEI Distributor Vacuum Advance – Adjustable
Product Details
Brand: Proform
MPN: 66952C
Unit of Measure: Each
Ships to Canada Only: Due to tariffs, this item cannot be shipped to the US.
Adjustable vacuum advance unit for GM HEI distributors, designed to fine-tune ignition timing for improved drivability and performance. Suitable for GM HEI models up to 1996 as well as Ford, AMC, and Chrysler distributors built in the HEI style.
• Provides 13° of total vacuum advance
• Adjustable design allows precise tuning for optimum performance
• Fits GM HEI distributors through 1996 (non-computer controlled)
• Also fits Ford, AMC, and Chrysler HEI-style distributors
• Not compatible with computer-controlled HEI units
• Sold individually
Setting Instructions: Rotate the adjustment screw counter-clockwise to reduce vacuum advance. Do not exceed 5 full turns to avoid screw disengagement.
Display prices in:CAD