[SFM5S159]

Guys,
I recently had a stroke of good luck and became the proud owner of an unmolested 428 SCJ that I am going to install in my '67 GT500. The engine is STD bore and seems never to have been apart, the pistons and all bearings are all STD original Ford parts.
Here is where I need a little help with the SCJ vs the std 428 or CJ:
What flywheel can I use with my SCJ? I have read that they are different in some manner. I do not have the flywheel that was on the motor.
Also, I noticed that the balancer/pulley setup is different on the SCJ vs my 428 PI motor in the Shelby. Should I anticipate a problem with belt alignment by going to the SCJ motor?
I am aware of the different balancer and "hatchet" counterwieght on the SCJ, but I do not know what this means in terms of engine balance.
Any help and info would be welcome
Thanks
Mike.