Thinking about going EFI

Got a carbed 351w in my car now, and since Ive been on stangnet been considering switching to efi over the winter, Im thinking about going to the bone yard and finding a efi 150, taking the computer, wiring harness, sensors, lower/upper intake, etc., will this work, would I be able to be setup like a 5.0 efi even if its an older efi setup.
 
thanx for the replies, nother question, will I need all of the efi stuff, like all of the sensors, can I just get all of the fuel and air parts, like tb, injectors, o2 sensors etc., or will I need everything to go thru the cycle.