Classic Delco distributors seem to cover the gamut of types, ranging from single-point to dual-point in aluminum and cast iron. We're about to tackle a cast-iron, tach-drive distributor. This ...

Factory HEI distributors are inexpensive (used) and very reliable but don’t have the tach drive for 1962-’75 Corvettes. One option is to have your mechanical tach converted to an electronic tach.

The cast-iron Delco tach-drive distributor was employed on Corvette small- and big-block V-8s from 1962-’74. It is easily the most rugged OEM distributor ever made for an American automobile.

The GM High Energy Ignition (HEI) self-contained distributor and coil package is a slick upgrade for any small- or big-block Chevrolet engine over a breaker point ignition. But the HEI does suffer ...