HEI Advance Curve Kit
Suits All GM HEI Distributors
- Special design centerplate eliminates over-centering of the centrifugal weights
- "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 from quick, to super-quick, to ultra-quick
- Weights and centerplates precision stamped with smooth edges eliminate erratic timing
- Comes with complete installation instructions