While the S550 Mustang’s IRS is mostly good, significant wheelhop can be a problem in the burnout box if you’re planning more than a few runs down the quarter-mile. It’s not something many would often ...

In 1993, Bill Reilly spent a bunch of time and money upgrading his '69 Dodge Dart with bigger torsion bars, '73-up disc brakes, and a healthy big-block. In his own words, "It was absolutely miserable ...

UPR Products of Lake Worth, Florida, has been manufacturing upgrade parts for late-model Mustangs for years. When we came across a New-Edge Mustang looking to improve its 60-foot dragstrip times, we ...