Internal balanced..what damper do I need

The question is what dampner are you using on the engine a internally balanced unit or a externally unit,one is forger crank unit one is a cast crank unit,mrmopartech
Need pictures or numbers from the unit.
Are you using a stock torque,and does it have weights on it? Because if it,s a internally balanced unit,you can not have a weighted torque,and need the 360 flex plate,mrmopartech