For this issue's Tech Inspection, we added a Cagle fuel regulator to a daily driver. The Cagle regulator is different from most because it restricts fuel according to engine load (as read by engine ...

Well, I made it back out into the garage again this past weekend. Hopefully it's a sign that work on the '57 Chevy project has restarted in earnest. As you may recall, the last time I got out there I ...

Extra power is fun, but there comes a time when issues need to be addressed. At some point, many will replace a broken engine or rebuild in anticipation of more output. In either case, it's likely you ...

Your car's engine needs a very specific diet of air and fuel to do its job, and it's the fuel pressure regulator's (FPR) job to feed it the right amount. The gadget is relatively tiny and can fit in ...

For most street-driven Mustangs with moderate bolt-ons, the typical fuel-system upgrades likely consist of a higher-capacity intank fuel pump and a fuel-pressure regulator to make tuning adjustments.