Ever hear the saying "ignorance is bliss"? When it comes to the valvetrain on my Real Street pushrod engine, it might be true. For about a year, we've been looking for an opportunity to look at our ...

For years, the standard operating procedure for testing new components or ideas has been to eliminate every variable possible, make one small change, and evaluate how that affects performance. It's ...

With some Winston Cup engines now using multiple lobe profiles on the same shaft, how can rocker-arm ratios be selected accordingly? Let's talk about this for a moment. The issue takes us back several ...

In the pre-LS era, a typical small-block-powered street car would rev willingly to around 5,000 rpm. You could assemble a cam package for it—even using heavy components—and you probably wouldn't have ...