Here's a Novi 1200 on a 67-68 from Paxton.
But... a couple of things concern me about the validity of your question:
1. What is an "SVO R-Block"? I've seen "A4" blocks from FRPP, and even those would split in half at 800hp.
2. What is a "hydraulic rotor cam"?
3. "Two tunings"? Does this 67 have EFI?
4. Only more boost will change the amount of hp in a super charger swap.
If you don't have subframe connectors and/or a 'cage, it won't matter anyway, your Mustang will look like a pretzel.