Moroso 72300 Moroso GM HEI Advance Curve Kit

HEI Advance Curve Kit, special design centerplate eliminates over-centering of the centrifugal weights. Designed by Nelson Crozier. Fits: All 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
• Weights and centerplates precision stamped with smooth edges eliminate erratic timing
• Comes with complete installation instructions