I can't speak as to the FI route, never been there. However, I think trying to run a 540 with an 8-71 on one carb would be a big mistake. Listen to the previous advice. These guys know what they are talking about. I have a 454 and I am running 1900 cfm total between the two carbs. Choking it down would be asking for trouble. IMO. The worst thing you can do is run a blower motor lean. Let that sucka breath. Plus, I think it would look goofy.