The 5.0 is back! The 2011 Ford Mustang GT arrives with an all-new advanced 5.0-liter V-8 engine, developed by a passionate cadre of enthusiastic engineers who rallied around the common goal of delivering more than 400 horsepower. The modern 5.0-liter four-valve Twin Independent Variable Camshaft Timing (Ti-VCT) V-8 engine in …