We used Modern Driveline's optional kit that features a capacity of 450 hp. It upgrades the project with a Kevlar clutch kit and a lightened billet flywheel. This photo shows both, as well as the transmission conversion crossmember, transmission mount, speedometer cable, and shift-lever components. At the upper left is the clutch cable, cable-housing support plate, and pedal-conversion bracket. The 450hp kit costs $3,176.35. As our car was originally equipped with a manual transmission, we didn't have to worry about pedals. If you're converting an automatic car, then Modern Driveline has manual transmission pedals for '65-'70 Mustangs, too.