Go electric if you want wank factor, but don't really NEED to change anything, when I was going to put sidedrafts on mine make sure if you use trumpets and filter socks that you get very short ones as one will hit on the brake booster depending on what manifold you use. You can also buy a linkage kit from redline which any v8/hotrod or probably even repco could get, and would probably be a very good idea to at least put new seals through the carbs if not full rebuild, and also make sure they are jetted right, then go get a dyno tune if you want to make the most of them get them balanced properly and tuned perfect.