I need to switch out the 351W flywheel I have in my 1991 Mustang with a 302 flywheel.

Seems the 302 5.0 L engine I put in the car has the wrong flywheel. The currently installed flywheel has a 28oz weight. I need it to be 50oz.

1) can I buy a 22oz weight to make up the difference?
2) or should I buy a 302 5.0L flywheel that is 50oz.

If anyone has a flywheel for sale? or weights for sale? let me know

thanks