Kind of depends...
Many alky engines are built without valve seals. This lets the motor pull a little oil through to help keep the top lubes. If yours doesn't have any, you'll need to add them back for street use.
Whats the compression ratio? Are you wanting to run it on pump gas or race gas? If race gas, you may as well leave it on alky, as it'll be cheaper and run cooler.
Speaking of cooler, how big is the radiator? Alky doesn't require nearly as much cooling capacity as gas.