Chev HEI Distributor Advance Curve Kit # 66948C
Distributor Advance, Mechanical, GM, HEI, Kit
Advance Weights Included:
Yes
Advance Limit Bushings Included:
Yes
Spring Quantity:
6
Adjustable Vacuum Advance Included:
No
Quantity:
Sold as a kit.
Notes:
Fits GM type HEI distributors. Will not work with computer controlled HEI.
Proform HEI Advance Curve Kits
These HEI advance curve kits from Proform are offered with three sets of springs for custom-curving your own distributor. They’re a must for modified engines.