1972 dart 318 want to make the tires spin

The HP was a total guess. I know a Voodoo cam is in it and a new torque converter was put in also. I just thought that it would spin the tires and it wont even come close. The 904 Tranny was rebuilt also.
This is my first classic car and i'm a beginner on everything and had the motor rebuilt. Just want to double check on it and find out if something was left out. When in park the motor feels strong and very responsive. It sjust doesnt get to the wheels for some reason. Thanks guys.