Moroso 72300 Advance Curve Kit, Fits GM HEI Distributors
- 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.