Last month we acquainted you with a few unique procedures for using conventional tune-up devices—such as a vacuum gauge, timing light and electrical analyzer—for evaluating the efficiency and ...

If all those engine goodies don’t result in cylinder pressure, performance is sure to disappoint, and there’s more to the story than you think. To celebrate HOT ROD's 75th anniversary, we teamed up ...

To help detect and pinpoint faults in ailing motors there are various aids, such as warning lights on the dash and on-board diagnostics. But there are a couple of simple tests that give us a pretty ...