converting 340 to EFI is Edlebrock the best solution?

OP, you did not give enough info on what you want for us to tell you what the best solution is. Imo the best solution is a completely tunable standalone multipoint efi, (AEM Infinity, Holley dominator, megasquirt) but the level of knowledge, or learning, required is high, much higher learning curve than making a carb work. I’ve done them and again imo it’s worth it. But you have to put the time and research in. If you just want to ditch a carb and plug on an EFI for bragging rights and are not interested in putting the effort in, then a fitech or sniper fits the bill and can do what 90% of most people are after. In all seriousness if you dug in to carburetor theory and tuning you might be shocked by how well a carb can run. Once again all of this is my opinion.