When is it worth it to upgrade from the first Gen port EFI Edelbrock to say the newest 4 version. Seems biggest change is sequential vs batch. Not sure what other useful bells and whistles are really needed/worthwhile. I suspect if Edelbrock will piece meal the upgrade, its mainly ECU, Dual sync Dist, wiring harness, controller, and manifold, injectors, fuel supply stays the same?
My application is non race, street performance only.

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.