H.E.I. Advance Curve Kit; GM H.E.I. Distributors; Incl. 3 Advance Spring Sets/Instructions;
- 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
- Built-in stop prevents the adjustment screw from "backing out" like other designs
- Weights and centerplates precision stamped with smooth edges eliminate erratic timing
- Comes with complete installation instructions
- 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
- Built-in stop prevents the adjustment screw from "backing out" like other designs
- Weights and centerplates precision stamped with smooth edges eliminate erratic timing
- Comes with complete installation instructions
