5.9 Magnum to TF904

Working on getting 5.9 Magnum hooked to my 904 trans. Picked up a new torque converter at Summit this weekend. I noticed that no matter how I spin the Magnum flex one of the bolts never line up. The 360LA plate lines up.
Also the Magnum tone/flex plate has counter weights already so do I add more to the converter? The converter is for a 318.

1.Do I just grind the one hole to match or do I need a different converter?
2.Do I added more weight to the converter?

Thanks OG

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Author: admin