Here's how I read a dyno sheet, what I'm looking for, and what the numbers actually tell you about how a build is going to feel on the street.

The compensator is one of the most overlooked components on your Harley — and on M8 engines, one of the most dangerous to ignore. And the crazy thing is – most riders never think once (much less twice) about their compensator.

I've spent the last several decades building engines, winning championships, and talking to riders about what actually makes a Harley perform. Most of what I've learned isn't written down anywhere. That changes now. Why We Built This Star Racing has been a parts business for a long time. We've shipped cams and other high-performance upgrades to customers across the country and around the world. We've built race engines that won six NHRA championships. We've helped thousands o