To ensure that the test was fair, we had to make this distributor as good as new, or better. So, before it ever saw action, the stock distributor was treated to a new rotor, cap, and module.

The demands for better emissions and fuel economy in the mid 1970s necessitated leaner fuel mixtures. These leaner mixtures required greater voltage and more spark to ignite. This challenge led GM ...

Four Wheeler's Verne Simons shows us how to install a Davis Unified Ignition HEI Distributor in an AMC 304 V-8.

Summit's HEI includes the company's high-output module, centrifugal advance components, and adjustable vacuum advance canister.