Measuring an engine's air/fuel ratio is arguably the best method of understanding how well or poorly an engine is running. Not that long ago, it was very expensive and cumbersome to install an AFR ...

Back in the Fox days, the most common method of tuning was to increase timing until detonation, and back it off a couple degrees. Like Fox cars, that method was crude, but a dyno wasn't on every other ...

"Uh, I don’t know. The car felt good and I was driving wicked fast. Yeah, I mean, I think it felt a little… slower? But dude, I really got on the gas early in turn 6 and it felt great. Or was that 7?