what kind of power am i makin here?

so im lookin at a mid 12 car if i hook up and have a good run? yeah its somewhat of a light car its a dart with a 360 and a 727 im sure if i empty out the trunk and run it with a little under a half a tank of gas that will save me some weight. i guess it weighs 3400 lbs dont really know what it weighs more interested if the way i built the motor was decent enough to give this guy a run for his money