When engine is running and you shift into drive as your throttling down she only goes about a third of the way even when your pushing it full throttle. Does the linkage need adjusting or what? It has full power going in reverse but not forward. There is a Chrysler model # inside the bottom of the motor case that says 1157H8A but the cover says Charger 85. We're still trying to figure out what kind of motor and year it is. There are 3 carbs and 3 cylinders.