Get hold of the Mopar Performance Engine book and stick with the Direct Connection Cam specs.
You can have a cam manufacturer, such as Bullet Cams make you an exact cam to their specs. There are other custom cam manufacturers out there besides Bullet.
You will be thanking me for a long time, if you do this. They have mild street all the way to all out Race Cams and these Cams are made specifically for Mopars A,B,C,E and F bodies.