lean burn

Any system with a ballast resistor is older tech and not as good a spark or reliability. I put an 8-pin HEI module in my 1964 Slant 225, with a later e-distributor. Many posts. From a salvage yard GM 1985-95 V-8 pickup, take the module, coil, and Weatherpack cable which connects the two. The module is inside the distributor cap, and also snip the wires at the pickup to get that connector. I would also grab the 5-pin control cable in case you later get an engine controller which can command spark advance with it (ex. Holley Commander 950). I also grabbed the knock sensor (in water jacket drain) and knock module (on intake manifold), with 1 wire between them. I put the sensor in the slant's drain hole (w/ bushing), but haven't used it yet.