ben790450

Ok so im starting to get this all mapped out. I found a 5.4 block for $500 thats in very good condition. Once i get the manifold adapters i'll take out the 4.6 and transfer it all over. I know my long tubes wont fit but i have a buddy with shorties that wants to trade me. My question now is this. Can i still use the same computer or do i have to use a 5.4 one. Its a 4.6 top end on a 5.4 block. Anything else i need to be aware of before i get myself into this? (by the way i plan to stay N/A for a long time. . . )