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 Super HEI Kit-which is a smog-legal modification, by the way-allows you to retain an already installed HEI distributor. Depending on the type of module you're running (four-, five-, or seven ...

The GM HEI distributor is still a marvel of simplicity and reliability after four decades. Here’s how to maximize its performance on the cheap.

If you're swapping points to an HEI distributor to lower maintenance requirements, you're good to go, but will you be able to feel a difference if you do?