[Chaplin]

I have a 428 in mine and it's got plenty of power, although it certainly isn't stock, as you describe the motor in 377. But even if the motor is close to stock, it would not take much $$ to liven it up. A new cam, manifold and carb would probably be less $1,200 (excluding labor costs), and if you really wanted to go all out, you could add a set of new aluminum edelbrock heads for another $1200. With those changes, you could easily get 450 hp and a similar amount of torque out of a 428, which should be more than enough.