Product Description
HEI Advance Curve Kit, special design centerplate eliminates over-centering of the centrifugal weights. Designed by Nelson Crozier. Fits: All GM HEI Distributors EXCEPT COMPUTER CONTROLLED 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
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
