Will the MMSTB-8 fit my SuperBlow XC-3456-123 supercharger?
Contact the manufacturer of your positive displacement supercharger, provide them with your complete supercharger serial number, and ask then what the size (volume) is of your supercharger. If the supercharger is 2.3L or smaller, the MMSTB-8 should fit.
Do I need to drill any holes for installation?
Yes.