Balancing a Scat cast crank

I'm about to build the strategy to correct the unbalance
I have an internal balanced 408 stroker setup


Balanced ................................................Internal balanced, balanced assembly
Connection Rods ....................................Chrysler Rod 6.123
I'm not so clear as to how or what you have going on! If you had a shop balance it, and even ran it on a dyno, Why does the balance job need to be fixed? Do you have something else out of weight? As in the flex plate or torque convertor? OR, was it never actually balanced. Who assembled it? Was there malaroy metal added to the cast crank, it would have been obvious.[/QUOTE]

This 408 stroker Mopar engine was purchased ready build and the history of balanced or not, will be unknown for all future