Can you use a 351c distributor for a 89 460 efi motor?

No, a 351C distributor cannot be directly used in a 1989 460 EFI motor. The two engines have different ignition systems and mounting configurations. The 460 EFI motor requires a distributor specifically designed for its electronic fuel injection system to ensure proper timing and operation. It's best to use a distributor that is compatible with the 460 engine.