It is not very practical from a $$ standpoint unless you use the Holley Pro-jection set up. I was looking at doing multi-port on my cleveland and it would have cost around $4000 for everything, modified single plane intake, injectors, fuelrails, throttle body, computer, fuel pump... it added up way to quick for me. I think the company that modifies the intakes was called Force Fuel Injection. They have a web page somewhere. Also check out the best Cleveland forum on the web,
http://www.network54.com/Hide/Forum/119419
You may have to copy and paste that.
There is also a site about modifying a 351W setup on to a 2V C at,
http://www.detomaso.nu/~thomast/efi/
I have a 4V so that wasn't an option for me. I hope this helps out.