Have to use a magnum V8 flex plate and the balance will depend on if you have internal or external balance and if the external balance weight is on your converter or not.

I don't know any trick to raise the RPM limit on the old computer short of switching to the new one and programing it. 96 I think is still the old computer with the new programing, a lone orphan deal.

Probably not much help now but I just add a bunch more cubes to keep from raising the limiter.