What can a 4.6L with aftermarket suspension (MM kit, Kenny Brown kit, Steeda 5 link or Gtrac) beat on a road course? Given the drivers are both the same and they are both on street tires what can a 4.6L Mustang beat on a road course? I'm not talking about Auto-x where a guy in a 120hp Miata with a suspension will beat a Z06, I'm talking about a road course where both power and handling come into play. So how well can you get a solid axle 4.6L Mustang to handle?