- "Recurve" your distributor for full spark advance at the optimum RPM
- Three sets of advance springs allow you to adjust the rate of spark advance
- Weights and centerplates precision stamped with smooth edges eliminate erratic timing
- Comes with complete installation instructions
- Fits: All 1957-'75 GM/Delco Non-HEI
- Advance Weights Included:
- Yes
- Advance Limit Bushings Included:
- Yes
- Spring Quantity:
- 6
- Adjustable Vacuum Advance Included:
- No
- Quantity:
- Sold as a kit.
- Notes:
- Advance curve kit fits all 1957-75 Delco style non-HEI, points type distributors.
