Flywheel weights??

[AZNEAL311]

I recently bought an aluminum flywheel and it cam with 2 different weights. It does not say any thing about them so I have no idea which one to use. Anyone have any idea?

 

[Kumm3]

larger one is for 50oz imbalance, smaller is for 28oz imbalance

 

[AZNEAL311]

What size weight?

From what i read 5.0 H.O. use 50oz which is what I have but not stroker kits. The guy I bought my car from didnt build the motor or know much about it. I have the oil pan off right now and could see the SpeedPro symbol on the pistons so i would assume its bored 30 over. How can you tell if the motor has been stroked? Markings on the crankshaft or any thing like that.