@Chris What generation is your F-Body? I seem to think 2nd gen, but I could be off.
Why not go with a late model Corvette/LS F-body swap like this: http://www.customworksperformance.net/brakes.html
Or if it's a 1st gen: https://bigbrakeupgrade.com/product-category/afx-short-spindle-1964-72/