MOROSO 72300 HEI Distributor Mechanical Advance Re-curve Spring Kit for Chevy/GM

You are bidding on a Moroso GM HEI Distributor Curve Spring Kit Part#72300 It is brand new in its original packaging from the manufacturer.   "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 H.E.I. Advance Curve Kit, all GM H.E.I. distributors. Special design centerplate eliminates over-centering of the centrifugal weights. Designed by Nelson Crozier   Shipping will be free to the US only. International shipping is available at an extra cost to be paid by the buyer, calculated, depending on the buyers location. Item will be shipped within one business day upon receiving payment for your purchase. Heintz Brothers is a locally owned small business in operation for over 35 years,