Moroso 72310 Moroso 57-75 GM Non HEI Advance Curve Kit

Advance Curve Kit. Fits: All 1957-'75 GM/Delco Non-HEI

• "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